--- title: "How to verify reliability of a bolt supplier in China for mass production projects?" description: "Sourcing industrial bolts from China faces common pain points including unvalidated supplier capability, hidden quality risks, and unexpected delivery delays. This content delivers practical verification criteria, cost comparison rules and risk mitigation steps to help you select qualified suppliers that fit your production needs." url: "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html" language: "en" type: "Q&A" category: "China Sourcing Q&A" datePublished: "2026-08-25" dateModified: "2026-08-25" brand: "OK TOOL" manufacturer: "OK TOOL" answerCount: 10 --- # How to verify reliability of a bolt supplier in China for mass production projects? ## Question I am a purchasing director at a mid-sized industrial automation equipment manufacturer, managing 120+ multi-category component suppliers across 7 product lines. Last quarter we switched to a low-cost Chinese bolt supplier to cut 12% of fastener costs, but we ran into 3 separate issues: 8% of the M12 grade 8.8 hex bolts delivered had inconsistent tensile strength, 15% of the order was 12 days late due to unannounced production scheduling changes, and the supplier refused to cover the additional air freight cost we paid to avoid line shutdown. Now we have a new 2027 annual order for 2.3 million units of mixed standard and custom bolts, with a total value of over $480k, and I need to find a qualified bolt supplier in China. But I don’t know how to tell the real manufacturing factories from trading companies that mark up prices and pass orders to random small workshops, how to compare quotes fairly without falling into low-price traps, and how to make sure the supplier can meet our monthly quality and delivery KPI requirements consistently. I need a clear, actionable framework to evaluate candidates and reduce cooperation risk before signing the long term contract. ## Answers ### Answer 1 — Best Answer Not all registered Chinese bolt suppliers are real manufacturing facilities, and a quick initial filter can eliminate 70% of unqualified candidates before you waste time on site visits. First, confirm the supplier’s business scope on their official industrial and commercial registration record: if the scope only lists "hardware trading" or "import and export" without "metal fastener production" or "hot forging / cold heading processing", it is 100% a trading intermediary, not a factory. Then ask for their recent 3 months of tax invoices for bolt production materials such as steel wire rod, to confirm they are actually running production lines on site. For your 2.3 million unit annual order, any factory that cannot provide these two documents within 2 working days should be removed from your candidate list directly. For cost and lead time evaluation, break down each quote into 4 separate parts to avoid hidden costs: raw material cost, processing cost, surface treatment cost, and logistics + testing cost. **Any quote that is 15% or more lower than the average price of 3 other qualified factories in Zhejiang, Jiangsu or Shandong major fastener clusters must be flagged for further investigation**, as the supplier is very likely to use lower grade raw material or skip full mechanical property testing to cut cost. For 2026 production lead time, real bolt factories with 100+ cold heading machines can deliver standard size orders within 12-18 working days, while custom size bolts with special plating or tolerance requirements take 22-30 working days. Any supplier that promises a 7-day lead time for all orders is either outsourcing all production or will cut corners on quality control to hit the deadline. The final validation step is to arrange a third-party witness inspection during sample production and first batch trial run. **Ask the supplier to provide full IPQC records of the first 1000 units of trial production before the batch is shipped**, including tensile strength test reports, hardness test data, and thread gauge inspection results. You can also negotiate a penalty clause in the contract that if the non-conforming rate of any batch exceeds 0.5%, the supplier needs to cover all related rework and freight costs. **Once a supplier passes the 3 consecutive small batch trial runs without quality or delivery deviations, the long term cooperation risk can be controlled below 2% for annual orders under 1 million USD**. **status:** accepted **Author:** David Zhang **Date:** 2026-08-25 ### Answer 2 When you visit a bolt production site, count the number of cold heading machines, thread rolling machines, and heat treatment furnaces that are running at full load during peak working hours. A qualified bolt factory for mass orders should have at least 3 separate production lines dedicated to standard fastener production, with an average cycle time under 3 seconds per unit for M6 to M20 size bolts. If you see most of the production lines are idle, or workers are manually feeding blanks into old thread rolling equipment that is over 15 years old, the production consistency will be very poor, and you will see at least 3-5% dimensional deviation across different batches. You can also ask the on-site staff to show you the last 7 days of production output logs for similar bolt SKUs, to confirm their actual daily capacity matches the number they stated in the quotation. This avoids the situation where a supplier accepts your order but outsources 40% of the volume to a smaller unvetted workshop to fill the capacity gap. **status:** suggested **Author:** Linda Xu **Date:** 2026-08-25 ### Answer 3 For bolts that come with plastic insulation sleeves, anti-loosing nylon patches, or head caps, you need to confirm the process parameter window the factory uses for overmolding. Nylon patch bolts for high vibration applications often suffer from patch flash, insufficient compression, or patch falling off after 50+ tightening cycles, if the injection holding pressure and cooling time are not set correctly. Ask the factory to show the process parameter log for the exact part you are sourcing, and run 20 units of torque retention test on the pre-production samples at 120 degrees C for 240 hours. If the nylon patch softens and loses more than 15% of its locking torque after the high temperature test, the process setup is not optimized, and you will get a large number of failed parts after they are installed in your equipment. **status:** suggested **Author:** Eric Zhao **Date:** 2026-08-25 ### Answer 4 For industrial bolts used in automation equipment, you need to confirm the factory can provide full traceability documentation for every batch, not just a generic test report issued 2 years ago. For orders that will be shipped to EU or North American markets, the bolts need to meet REACH restriction on harmful heavy metals in plating, and the raw material steel must be fully traceable to the original mill with material test certificates that match the exact production batch number. Many small factories will reuse old certification documents for different batches, and cannot provide the corresponding test report for the specific heat number of the steel used for your order. You should also check if the factory runs annual third-party audit for ISO 898-1 fastener standard compliance, any supplier that cannot provide the latest audit record from an independent third party will face high risk of being held up at customs during import clearance in 2026. **status:** suggested **Author:** Olivia Chen **Date:** 2026-08-25 ### Answer 5 Do not blindly follow the grade 8.8 or grade 12.8 marking on the bolt surface, as many unqualified suppliers use lower carbon steel and do fake heat treatment to meet the surface hardness requirement, which will lead to sudden brittle fracture under dynamic load. For your automation equipment application, if the bolt is installed on a component that bears repeated impact load, you can ask the supplier to use 20CrMnTi alloy steel instead of regular 45# carbon steel, the cost will increase by around 8% but the fatigue life will be 3 times longer than regular grade 8.8 bolts. Avoid choosing raw materials with hardness higher than 35 HRC for bolts that need to be installed on aluminum alloy frames, as higher hardness bolts will easily cause thread galling and damage the female thread during the assembly process. A proper material matching plan can reduce your overall assembly failure rate by more than 60% at only a tiny extra material cost. **status:** suggested **Author:** Daniel Yang **Date:** 2026-08-25 ### Answer 6 Set clear milestone checkpoints at every stage of the cooperation before the order is placed, to avoid scope changes that cause delays. After the sample submission, you should sign off a formal sample approval document that defines the exact dimension, performance, appearance and packaging requirements, and make this document the binding standard for all subsequent mass production batches. If the supplier proposes to change raw material supplier, adjust heat treatment parameter, or switch plating vendor for cost reduction during the order execution, they must notify you in writing at least 10 working days in advance, and provide new test samples for your approval before they produce the related parts. Any unapproved process change that the supplier makes on their own should trigger a predefined penalty clause, which will push them to prioritize your order requirements instead of cutting corners to save cost. This avoids unexpected quality deviations that only show up after 3 consecutive batches have been delivered to your factory. **status:** suggested **Author:** Michael Wu **Date:** 2026-08-25 ### Answer 7 For custom non-standard bolts that require special head shape, unique thread profile, or special undercut features, the cold forging die directly determines the part consistency and production cost. Ask the supplier what kind of tool steel they use for the cold forging dies for your parts. Standard D2 steel dies have a service life of around 80,000 to 120,000 strokes, while lower grade Cr12 steel dies will wear out after 30,000 strokes, which will lead to dimensional deviation on the bolt head after the die wears without being noticed. A qualified factory will have a scheduled die maintenance cycle every 25,000 strokes, and replace worn inserts before the dimensional tolerance goes out of your required range. If the supplier does not have a formal die maintenance log, you will face a high risk of getting parts that do not fit your assembly after 2-3 months of mass production, which will cause extra rework cost on your end. **status:** suggested **Author:** Rachel Huang **Date:** 2026-08-25 ### Answer 8 For custom bolts with special plastic overmolded features, the mold structure and gate location will directly affect the final part quality. If the gate is placed on the load bearing surface of the nylon patch or plastic sleeve, the residual stress after injection will cause the part to crack under high load after 3 to 6 months of usage. Ask the supplier to share their DFM drawing for the overmolding tool before they start machining the mold, and confirm the gate is placed on the non-contact edge of the plastic part, so no residual stress remains on the functional surface. They should also add proper overflow slots at the parting line to eliminate sharp flash that may fall off during equipment operation and contaminate other moving components inside your automation equipment. Even for standard bolts, the forging die parting line design should ensure no sharp burr exists on the thread transition area, which may cause stress concentration and lead to unexpected bolt fracture. **status:** suggested **Author:** Sophia Wang **Date:** 2026-08-25 ### Answer 9 Define a clear AQL level for each inspection stage in your order contract, to eliminate ambiguous quality standards. For bolt products, set the IQC incoming inspection AQL for dimensional and appearance check at 0.65, and the AQL for mechanical performance test at 0.25. The factory should run 100% hardness test on every heat treatment batch, and extract at least 8 units per 10,000 units to run full tensile strength test. They should also keep all inspection records for at least 2 years, so you can trace back the root cause if any quality issue appears after the parts are installed. When a non-conforming batch is found, the supplier must implement a formal 8D corrective action report within 7 working days, and define the permanent improvement steps to prevent the same defect from happening again. Any supplier that pushes back on formal non-conforming corrective actions usually does not have a stable internal quality system, and will cause you repeated quality headaches in long term cooperation. **status:** suggested **Author:** Jason Zhou **Date:** 2026-08-25 ### Answer 10 Confirm the supplier’s peak season production arrangement before you sign the 12-month long term contract, to avoid unexpected delivery delays. Most Chinese fastener factories have a 2-3 month peak production period from October to December every year, when their existing customer orders take up 90% of their total production capacity. If you do not reserve dedicated production slots for your monthly order in advance, your order may be pushed back for 2-3 weeks to make space for larger domestic clients. You can negotiate a fixed weekly production allocation for your bolt SKUs, and ask the supplier to provide a weekly production progress photo and output report every Friday, so you can track the actual production status without waiting for the goods to be finished before you find out they are behind schedule. You should also confirm the supplier has 2-3 qualified backup surface treatment vendors for zinc plating and dacromet coating, so if their main plating line stops operation for maintenance, they can still deliver the finished parts on the agreed lead time. **status:** suggested **Author:** Kevin Liu **Date:** 2026-08-25 ## Related Resources - [China Sourcing Q&A](https://www.jaterson.com/qa/china-sourcing/) - [China Sourcing Buying Guides](https://www.jaterson.com/buying/china-sourcing/) - [Products](https://www.jaterson.com/products/) - [Capabilities](https://www.jaterson.com/capabilities/) - [Custom Manufacturing](https://www.jaterson.com/custom-manufacturing/) - [Manufacturing Guides](https://www.jaterson.com/manufacturing/) - [Manufacturing Knowledge Base](https://www.jaterson.com/knowledge/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { "@type": "Question", "name": "How to verify reliability of a bolt supplier in China for mass production projects?", "text": "I am a purchasing director at a mid-sized industrial automation equipment manufacturer, managing 120+ multi-category component suppliers across 7 product lines. Last quarter we switched to a low-cost Chinese bolt supplier to cut 12% of fastener costs, but we ran into 3 separate issues: 8% of the M12 grade 8.8 hex bolts delivered had inconsistent tensile strength, 15% of the order was 12 days late due to unannounced production scheduling changes, and the supplier refused to cover the additional air freight cost we paid to avoid line shutdown. Now we have a new 2027 annual order for 2.3 million units of mixed standard and custom bolts, with a total value of over $480k, and I need to find a qualified bolt supplier in China. But I don’t know how to tell the real manufacturing factories from trading companies that mark up prices and pass orders to random small workshops, how to compare quotes fairly without falling into low-price traps, and how to make sure the supplier can meet our monthly quality and delivery KPI requirements consistently. I need a clear, actionable framework to evaluate candidates and reduce cooperation risk before signing the long term contract.", "answerCount": 10, "upvoteCount": 5, "datePublished": "2026-08-25T08:43:42Z", "dateModified": "2026-08-25T08:43:55Z", "author": { "@type": "Person", "name": "Anonymous", "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "Not all registered Chinese bolt suppliers are real manufacturing facilities, and a quick initial filter can eliminate 70% of unqualified candidates before you waste time on site visits. First, confirm the supplier’s business scope on their official industrial and commercial registration record: if the scope only lists "hardware trading" or "import and export" without "metal fastener production" or "hot forging / cold heading processing", it is 100% a trading intermediary, not a factory. Then ask for their recent 3 months of tax invoices for bolt production materials such as steel wire rod, to confirm they are actually running production lines on site. For your 2.3 million unit annual order, any factory that cannot provide these two documents within 2 working days should be removed from your candidate list directly. For cost and lead time evaluation, break down each quote into 4 separate parts to avoid hidden costs: raw material cost, processing cost, surface treatment cost, and logistics + testing cost. Any quote that is 15% or more lower than the average price of 3 other qualified factories in Zhejiang, Jiangsu or Shandong major fastener clusters must be flagged for further investigation , as the supplier is very likely to use lower grade raw material or skip full mechanical property testing to cut cost. For 2026 production lead time, real bolt factories with 100+ cold heading machines can deliver standard size orders within 12-18 working days, while custom size bolts with special plating or tolerance requirements take 22-30 working days. Any supplier that promises a 7-day lead time for all orders is either outsourcing all production or will cut corners on quality control to hit the deadline. The final validation step is to arrange a third-party witness inspection during sample production and first batch trial run. Ask the supplier to provide full IPQC records of the first 1000 units of trial production before the batch is shipped , including tensile strength test reports, hardness test data, and thread gauge inspection results. You can also negotiate a penalty clause in the contract that if the non-conforming rate of any batch exceeds 0.5%, the supplier needs to cover all related rework and freight costs. Once a supplier passes the 3 consecutive small batch trial runs without quality or delivery deviations, the long term cooperation risk can be controlled below 2% for annual orders under 1 million USD .", "upvoteCount": 5, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#acceptedAnswer", "datePublished": "2026-08-25T10:00:59Z", "author": {"@type": "Person","name": "David Zhang","url": "https://www.jaterson.com/team/david.html"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "When you visit a bolt production site, count the number of cold heading machines, thread rolling machines, and heat treatment furnaces that are running at full load during peak working hours. A qualified bolt factory for mass orders should have at least 3 separate production lines dedicated to standard fastener production, with an average cycle time under 3 seconds per unit for M6 to M20 size bolts. If you see most of the production lines are idle, or workers are manually feeding blanks into old thread rolling equipment that is over 15 years old, the production consistency will be very poor, and you will see at least 3-5% dimensional deviation across different batches. You can also ask the on-site staff to show you the last 7 days of production output logs for similar bolt SKUs, to confirm their actual daily capacity matches the number they stated in the quotation. This avoids the situation where a supplier accepts your order but outsources 40% of the volume to a smaller unvetted workshop to fill the capacity gap.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-2", "datePublished": "2026-08-25T09:48:27Z", "author": {"@type": "Person","name": "Linda Xu","url": "https://www.jaterson.com/team/linda.html"} } , { "@type": "Answer", "text": "For bolts that come with plastic insulation sleeves, anti-loosing nylon patches, or head caps, you need to confirm the process parameter window the factory uses for overmolding. Nylon patch bolts for high vibration applications often suffer from patch flash, insufficient compression, or patch falling off after 50+ tightening cycles, if the injection holding pressure and cooling time are not set correctly. Ask the factory to show the process parameter log for the exact part you are sourcing, and run 20 units of torque retention test on the pre-production samples at 120 degrees C for 240 hours. If the nylon patch softens and loses more than 15% of its locking torque after the high temperature test, the process setup is not optimized, and you will get a large number of failed parts after they are installed in your equipment.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-3", "datePublished": "2026-08-25T09:44:36Z", "author": {"@type": "Person","name": "Eric Zhao","url": "https://www.jaterson.com/team/eric.html"} } , { "@type": "Answer", "text": "For industrial bolts used in automation equipment, you need to confirm the factory can provide full traceability documentation for every batch, not just a generic test report issued 2 years ago. For orders that will be shipped to EU or North American markets, the bolts need to meet REACH restriction on harmful heavy metals in plating, and the raw material steel must be fully traceable to the original mill with material test certificates that match the exact production batch number. Many small factories will reuse old certification documents for different batches, and cannot provide the corresponding test report for the specific heat number of the steel used for your order. You should also check if the factory runs annual third-party audit for ISO 898-1 fastener standard compliance, any supplier that cannot provide the latest audit record from an independent third party will face high risk of being held up at customs during import clearance in 2026.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-4", "datePublished": "2026-08-25T09:09:06Z", "author": {"@type": "Person","name": "Olivia Chen","url": "https://www.jaterson.com/team/olivia.html"} } , { "@type": "Answer", "text": "Do not blindly follow the grade 8.8 or grade 12.8 marking on the bolt surface, as many unqualified suppliers use lower carbon steel and do fake heat treatment to meet the surface hardness requirement, which will lead to sudden brittle fracture under dynamic load. For your automation equipment application, if the bolt is installed on a component that bears repeated impact load, you can ask the supplier to use 20CrMnTi alloy steel instead of regular 45# carbon steel, the cost will increase by around 8% but the fatigue life will be 3 times longer than regular grade 8.8 bolts. Avoid choosing raw materials with hardness higher than 35 HRC for bolts that need to be installed on aluminum alloy frames, as higher hardness bolts will easily cause thread galling and damage the female thread during the assembly process. A proper material matching plan can reduce your overall assembly failure rate by more than 60% at only a tiny extra material cost.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-5", "datePublished": "2026-08-25T09:07:01Z", "author": {"@type": "Person","name": "Daniel Yang","url": "https://www.jaterson.com/team/daniel.html"} } , { "@type": "Answer", "text": "Set clear milestone checkpoints at every stage of the cooperation before the order is placed, to avoid scope changes that cause delays. After the sample submission, you should sign off a formal sample approval document that defines the exact dimension, performance, appearance and packaging requirements, and make this document the binding standard for all subsequent mass production batches. If the supplier proposes to change raw material supplier, adjust heat treatment parameter, or switch plating vendor for cost reduction during the order execution, they must notify you in writing at least 10 working days in advance, and provide new test samples for your approval before they produce the related parts. Any unapproved process change that the supplier makes on their own should trigger a predefined penalty clause, which will push them to prioritize your order requirements instead of cutting corners to save cost. This avoids unexpected quality deviations that only show up after 3 consecutive batches have been delivered to your factory.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-6", "datePublished": "2026-08-25T09:06:01Z", "author": {"@type": "Person","name": "Michael Wu","url": "https://www.jaterson.com/team/michael.html"} } , { "@type": "Answer", "text": "For custom non-standard bolts that require special head shape, unique thread profile, or special undercut features, the cold forging die directly determines the part consistency and production cost. Ask the supplier what kind of tool steel they use for the cold forging dies for your parts. Standard D2 steel dies have a service life of around 80,000 to 120,000 strokes, while lower grade Cr12 steel dies will wear out after 30,000 strokes, which will lead to dimensional deviation on the bolt head after the die wears without being noticed. A qualified factory will have a scheduled die maintenance cycle every 25,000 strokes, and replace worn inserts before the dimensional tolerance goes out of your required range. If the supplier does not have a formal die maintenance log, you will face a high risk of getting parts that do not fit your assembly after 2-3 months of mass production, which will cause extra rework cost on your end.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-7", "datePublished": "2026-08-25T08:51:05Z", "author": {"@type": "Person","name": "Rachel Huang","url": "https://www.jaterson.com/team/rachel.html"} } , { "@type": "Answer", "text": "For custom bolts with special plastic overmolded features, the mold structure and gate location will directly affect the final part quality. If the gate is placed on the load bearing surface of the nylon patch or plastic sleeve, the residual stress after injection will cause the part to crack under high load after 3 to 6 months of usage. Ask the supplier to share their DFM drawing for the overmolding tool before they start machining the mold, and confirm the gate is placed on the non-contact edge of the plastic part, so no residual stress remains on the functional surface. They should also add proper overflow slots at the parting line to eliminate sharp flash that may fall off during equipment operation and contaminate other moving components inside your automation equipment. Even for standard bolts, the forging die parting line design should ensure no sharp burr exists on the thread transition area, which may cause stress concentration and lead to unexpected bolt fracture.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-8", "datePublished": "2026-08-25T08:46:40Z", "author": {"@type": "Person","name": "Sophia Wang","url": "https://www.jaterson.com/team/sophia.html"} } , { "@type": "Answer", "text": "Define a clear AQL level for each inspection stage in your order contract, to eliminate ambiguous quality standards. For bolt products, set the IQC incoming inspection AQL for dimensional and appearance check at 0.65, and the AQL for mechanical performance test at 0.25. The factory should run 100% hardness test on every heat treatment batch, and extract at least 8 units per 10,000 units to run full tensile strength test. They should also keep all inspection records for at least 2 years, so you can trace back the root cause if any quality issue appears after the parts are installed. When a non-conforming batch is found, the supplier must implement a formal 8D corrective action report within 7 working days, and define the permanent improvement steps to prevent the same defect from happening again. Any supplier that pushes back on formal non-conforming corrective actions usually does not have a stable internal quality system, and will cause you repeated quality headaches in long term cooperation.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-9", "datePublished": "2026-08-25T08:46:37Z", "author": {"@type": "Person","name": "Jason Zhou","url": "https://www.jaterson.com/team/jason.html"} } , { "@type": "Answer", "text": "Confirm the supplier’s peak season production arrangement before you sign the 12-month long term contract, to avoid unexpected delivery delays. Most Chinese fastener factories have a 2-3 month peak production period from October to December every year, when their existing customer orders take up 90% of their total production capacity. If you do not reserve dedicated production slots for your monthly order in advance, your order may be pushed back for 2-3 weeks to make space for larger domestic clients. You can negotiate a fixed weekly production allocation for your bolt SKUs, and ask the supplier to provide a weekly production progress photo and output report every Friday, so you can track the actual production status without waiting for the goods to be finished before you find out they are behind schedule. You should also confirm the supplier has 2-3 qualified backup surface treatment vendors for zinc plating and dacromet coating, so if their main plating line stops operation for maintenance, they can still deliver the finished parts on the agreed lead time.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/verify-reliability-bolt-supplier-china-mass-production.html#suggestedAnswer-10", "datePublished": "2026-08-25T08:43:55Z", "author": {"@type": "Person","name": "Kevin Liu","url": "https://www.jaterson.com/team/kevin.html"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.jaterson.com/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.jaterson.com/qa/"},{"@type": "ListItem", "position": 3, "name": "China Sourcing Q&A", "item": "https://www.jaterson.com/qa/china-sourcing/"} ,{"@type": "ListItem", "position": 4, "name": "How to verify reliability of a bolt supplier in China for mass production projects?"} ] } ] ```