Socket Head Cap Screw Torque Chart Metric & Torque Specs | Supplier
✅ Eliminate guesswork — get precision torque values for metric socket head cap screws. Reduce rework, prevent thread damage, and source from a certified ISO 9001 factory with 10+ years export experience.
⭐ Trusted by 30+ countries · Free samples · OEM/ODM ready
🏭 Handan Boen Fastener · 20,000 sqm facilityEvery year, poor torque management costs industrial buyers thousands in rework, stripped threads, and joint failures. Here are the top pain points we hear from procurement and engineering teams:
Mixed sources from suppliers, forums, and outdated charts lead to 15-20% higher scrap rates in assembly.
Low-quality fasteners from unknown sources cause 31% more torque failures — increasing total cost of ownership by 22%.
Sourcing from multiple suppliers means inconsistent specs and no single source of truth for torque validation.
Missing ISO, CE, or RoHS docs can block your shipments. 72% of buyers now require full traceability documentation.
👉 You don’t need just fasteners — you need certified torque data + a reliable partner.
Handan Boen Fastener delivers factory-direct metric socket head cap screws with verified torque charts, full material certs, and global logistics. Here’s how we eliminate risk.
10+ years export · 30+ countries · 30% lower cost than tier-2 distributors.
Metric charts for M3 to M30 — 8.8, 10.9, 12.9 grades — with recommended tightening torque.
ISO 9001, CE, RoHS, FCC — traceability from melt to finish.
15-25 days lead time · 98% on-time shipping record · ERP integration.
Reference torque values for standard metric coarse threads — dry, as-delivered condition. Always validate with your specific joint.
| Thread Size | Pitch (mm) | Tightening Torque (N·m) | Tightening Torque (ft·lb) | Clamp Load (kN) |
|---|---|---|---|---|
| M3 | 0.5 | 1.2 | 0.9 | 2.8 |
| M4 | 0.7 | 2.8 | 2.1 | 5.1 |
| M5 | 0.8 | 5.5 | 4.1 | 8.1 |
| M6 | 1.0 | 9.5 | 7.0 | 11.5 |
| M8 | 1.25 | 23 | 17 | 20.8 |
| M10 | 1.5 | 46 | 34 | 33.0 |
| M12 | 1.75 | 80 | 59 | 48.0 |
| M16 | 2.0 | 195 | 144 | 89.0 |
| M20 | 2.5 | 385 | 284 | 139 |
⚠️ Values are for reference only. Actual torque depends on lubrication, surface finish, and joint design. Contact our engineers for application-specific torque specs.
High-vibration joints — M10–M16 grade 10.9 with prevailing torque.
Engine & chassis fasteners — M6–M12 grade 12.9 with certified torque values.
Steel-to-steel connections — M16–M30 high-strength with Dacromet coating.

“The socket head cap screw torque chart metric they provided matched our application perfectly. Rejected parts dropped by 18% after switching to Boen.”

“Fast delivery, full traceability, and the torque specs are ISO-certified. We’ve reduced our supplier base by 30% using Boen as a single source.”

“Their grade 12.9 socket head cap screws consistently meet our torque specs within ±3%. Excellent technical support for custom designs.”

“We cut 22% from our fastener TCO by consolidating with Boen. The factory-direct pricing and torque data are a game changer.”

Stop guessing — receive a custom socket head cap screw torque chart metric for your application, plus factory-direct pricing within 24 hours.
✅ Free samples for qualified buyers · ✅ 30-day money-back guarantee · ✅ DDP shipping to USA & Europe
🏆 Trusted by Global Buyers
ISO 9001:2015
CE · RoHS · FCC
UL Recognized