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An Automotive-Grade Fastener Manufacturer Since 2000
One factory in Zhongshan, fully in-house from cold heading to laboratory testing — serving OEMs, Tier-1 suppliers and distributors with zero-defect discipline.
Zhongshan Sanxin Hardware Products Co., Ltd. specialises in grade 8.8 / 10.9 / 12.9 high-strength bolts, weld nuts, rivet nuts, stamped fasteners, high-precision CNC turned parts and a full range of standard and special-shaped components. Our stainless passivated products meet a 2,000-hour salt-spray standard, and automated cold-heading, thread-rolling, heat-treatment and plating lines run under one roof.
Our quality, environmental and automotive management systems are certified to IATF 16949:2016, ISO 9001:2015 and ISO 14001:2015, operated together to drive a zero-defect process. We are recognised and recommended as a qualified fastener supplier by GAC R&D Institute, and our parts support new-energy vehicle systems, intelligent cockpits, seating and electric door/tailgate assemblies.
- Cold-heading & CNC precision — from standard parts to complex custom components
- Full-process in-house — cold heading, thread rolling, heat treatment, plating and testing
- Mixed-container support — flexible MOQ and consolidation for distributors
- Export documentation — certificates, MTRs and SABER/SASO technical-file support
Why Buyers Choose Sanxin
Automotive-Grade, Zero-Defect Mindset
IATF 16949 systems, PPAP documentation and SPC process control — quality that passes strict vendor audits.
True Factory Direct Pricing
You deal with the manufacturer. No trading-company margins, with transparent cost structures for volume programs.
Flexible MOQ & Mixed Containers
Importer-friendly terms: per-model MOQ, mixed-container consolidation and loading-plan optimisation to maximise your container.
Standard Parts & Custom OEM
Order stocked standards directly, or send drawings or samples — our engineering team handles tooling, sampling and PPAP approval.
Export-Ready Documentation
Certificates, MTRs, packing lists and Middle East support (SABER/SASO technical files) handled by our export team.
Reliable Lead Times
Stocked standard items ship fast; custom parts run on controlled schedules with proactive order updates.
Talk to the Factory, Not a Middleman
Send your drawings, part list or target market — get pricing, MOQ and lead time within 24 hours.