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Every batch is manufactured under IATF 16949 and ISO 9001 quality systems, with 72-hour salt spray testing (SGS verified) and 100% dimensional inspection. By combining China manufacturing efficiency with advanced materials (SCM435 / 50BV30), we deliver lug bolts that consistently meet or exceed original equipment torque and fatigue standards. Whether you need standard sizes or fully custom lug bolts with special threads, seat types, lengths, or finishes, we provide end-to-end support from sample development to global delivery.
SCM435 / 50BV30 steel – heat treated for maximum tensile strength and fatigue resistance.
SGS-verified 72‑hour salt spray resistance – ideal for coastal, humid, and winter road conditions.
Thread size, length, seat type (ball/conical), drive, finish – any specification, any quantity.
Bulk orders, private label, mixed containers – we support distributors and OEM programs.
Our wheel lug bolts are manufactured to strict dimensional tolerances and mechanical properties, ensuring perfect fitment and consistent clamping force. Below are our standard options – we also accept custom wheel lug bolts requests for non‑standard sizes.
| Parameter | Options |
|---|---|
| Material | Steel / Alloy Steel / SCM435 / 50BV30 |
| Thread Size | M12×1.25 / M12×1.5 / M14×1.5 / M16×1.5 / Custom |
| Seat Type | Ball Seat (R10/R12) / Conical Seat (60°) / Flat Seat |
| Drive Type | Hex / Spline / 12‑Point / Locking (with key) |
| Surface Finish | Zinc Plating / Black Zinc / Chrome / Black Oxide / Custom Color |
| Length Range | 25 mm – 80 mm (custom lengths available) |
| Strength Grade | Grade 10.9 / Grade 12.9 |
| Certification | ISO 9001, IATF 16949, SGS Tested |
As a China lug bolts supplier, we prioritize quality at every stage. Incoming raw materials are analyzed for chemical composition and hardness. During production, we perform in‑process checks on thread geometry, concentricity, and surface finish. Final inspection includes 100% dimensional verification using CMM, dynamic torque testing, and salt spray sampling. Our quality system is certified to ISO 9001 and IATF 16949, giving you full traceability and peace of mind.
Our factory in Ningbo, China, follows strict 5S and SPC protocols to ensure custom wheel lug bolts orders are delivered with zero defects.
Secure fastening for daily drivers – our lug bolts offer long‑term corrosion protection and consistent torque retention.
Engineered to withstand mud, rocks, and heavy vibration – our custom lug bolts stay torqued in the toughest conditions.
Lightweight, high‑strength bolts for track days – quick pit stops and maximum thread engagement.
High‑torque, fatigue‑resistant bolts for trucks and delivery fleets – available in bulk orders with fast lead times.
Our wheel lug bolts factory in Ningbo, China, is equipped with 12+ cold heading machines for one‑step forming, 20+ CNC machining centers for precision threading, and a fully automated electroplating line for consistent coating thickness. We also operate an in‑house laboratory for metallurgical analysis, torque testing, and salt spray validation. This integrated setup allows us to control quality from raw material to finished product, ensuring reliable supply for lug bolts wholesale clients worldwide.
Tell us your required thread size, seat type, length, finish, and quantity. We’ll respond with a competitive wholesale price.
Inquiry now →We produce pre‑production samples for your testing. Custom wheel lug bolts samples are made to your exact specs.
After sample sign‑off, we schedule full production. Private labeling, custom packaging, and mixed containers are available.
We handle sea, air, or express logistics with full documentation. Your China lug bolts supplier ensures on‑time delivery.
Ready to buy wheel lug bolts from a trusted China manufacturer? Contact J&W Auto Parts for custom lug bolts, wholesale pricing, and OEM solutions.
Contact Sales TeamWe use SCM435 and 50BV30 alloy steels, which offer excellent strength and fatigue resistance. Carbon steel is also available for cost‑sensitive orders.
Yes. We can manufacture custom wheel lug bolts with any thread size and length you specify – just provide the details in your inquiry.
MOQ starts at 500 pieces per size for standard items. For custom lug bolts, MOQ depends on complexity – contact us for details.
Absolutely. We provide samples at a nominal cost, refundable on your first bulk order. This lets you verify fit and finish before production.
Standard finishes: zinc plating, black zinc, chrome, black oxide. Custom colors (red, blue, gold, etc.) are also available for branding.
Yes, our factory is ISO 9001 and IATF 16949 certified. All products are tested for hardness, torque, and corrosion resistance.
