From hex bolts to custom-engineered flange nuts — YHengGroup delivers aerospace-grade fasteners to automotive, construction, and industrial manufacturers across 80+ countries.
When your production line can't afford delays, YHengGroup delivers — with zero-compromise quality and the documentation that keeps your procurement team confident.
Every batch ships with material certificates (3.1), salt spray test reports, and torque verification documentation. Dimensional accuracy verified by CMM on every production run.
3–30 day standard delivery. Emergency orders accepted. Free samples available so you can validate quality before committing to production quantities.
Non-standard sizes, custom serration patterns, special coatings, and laser marking available from 500 pieces. Full engineering support and fastener selection consultation included.
From standard DIN/ISO products to fully customized OEM solutions — all manufactured in-house with full traceability.
Best Seller
DIN 933, ISO 4017, custom configurations. Grade 8.8–10.9 carbon steel and A2/A4 stainless steel. Zinc, HDG, Dacromet coatings.
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DIN 6923, DIN 6926 nylon insert, serrated flange. Multi-material range: carbon steel, stainless steel A2/A4, specialty alloys.
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ISO 9001, IATF 16949, SGS verified. Full material traceability, batch testing, and dimensional reports on every order.
Learn More →A streamlined procurement process designed for B2B efficiency — no delays, no surprises.
Share your drawings, standards (DIN/ISO/ASME), or samples. Our engineering team reviews and confirms feasibility within 24 hours.
We prepare samples and send a detailed quotation with material specs, lead times, pricing, and payment terms. Free samples available.
Full production run with in-process inspection, CMM verification, and salt spray testing. Real-time production updates on request.
Sea, air, and express delivery. Full documentation package: PL, CI, BL, CO, material certificates, and test reports. Dedicated account support.
We've sourced fasteners from multiple Chinese suppliers over 12 years. YHengGroup is the only one who has never delivered a non-conforming batch. Their documentation quality matches German suppliers — and their response time is faster.
Transparent answers to help you make an informed decision.
Send us your requirements — we respond with a detailed quotation within 24 hours, including samples and project timelines.