Metric Socket Head Cap Screw Dimensions Chart & Sizes | Buy
โ๏ธ Metric Socket Head Cap Screw Dimensions Chart & Sizes โ Buy Factory-Direct
Stop guessing thread pitches and head heights. Access the complete metric socket head cap screw dimensions chart with full size M2โM48 data, tolerances, and grade ratings. Designed for procurement managers and engineers who need certified quality at China factory prices.
โ No minimum order? Ask us. โ Free samples for qualified buyers.
๐ธ Handan Boen Fastener โ 30,000+ sqm manufacturing base
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๐ค Tired of Socket Head Cap Screw headaches?
- โ Inconsistent dimensions โ heads too tall, threads too short, causing assembly failures.
- โ Hidden costs โ brokers mark up 30-50% & you pay for rush freight when stock runs out.
- โ Certification gaps โ suppliers can't deliver ISO 898-1, RoHS, or CE docs on time.
- โ Long lead times โ 8-12 weeks from traditional mills, killing your project schedule.
- โ Wrong material grade โ 12.9 bolts that snap under load because the supplier cut corners.
- โ Minimum order tyranny โ forced to buy 10,000 pcs when you only need 500.
๐ 86% of our clients came to us after a quality or delivery failure from their previous supplier. Don't let your next shipment be the one that fails.
๐ฉ Precision Metric Socket Head Cap Screws โ Engineered for Reliability
Every screw we produce meets ISO 4762 / DIN 912 standards. Below is the metric socket head cap screw dimensions chart with all metric socket head cap screw sizes from M2 to M48. Use this as your go-to reference for procurement.
| Thread Size (M) | Pitch (mm) | Head ร (dk max) | Head Height (k max) | Hex Socket Size (s) | Min. Tensile Strength | Grade |
|---|---|---|---|---|---|---|
| M2 | 0.40 | 3.80 | 2.00 | 1.5 | โ | 12.9 / A2-70 |
| M3 | 0.50 | 5.50 | 3.00 | 2.5 | โ | 12.9 / A2-70 |
| M4 | 0.70 | 7.00 | 4.00 | 3.0 | โ | 12.9 / A2-70 |
| M5 | 0.80 | 8.50 | 5.00 | 4.0 | โ | 12.9 / A2-70 |
| M6 | 1.00 | 10.00 | 6.00 | 5.0 | 800 MPa | 12.9 |
| M8 | 1.25 | 13.00 | 8.00 | 6.0 | 800 MPa | 12.9 |
| M10 | 1.50 | 16.00 | 10.00 | 8.0 | 800 MPa | 12.9 |
| M12 | 1.75 | 18.00 | 12.00 | 10.0 | 800 MPa | 12.9 |
| M16 | 2.00 | 24.00 | 16.00 | 14.0 | 800 MPa | 12.9 |
| M20 | 2.50 | 30.00 | 20.00 | 17.0 | 800 MPa | 12.9 |
| M24 | 3.00 | 36.00 | 24.00 | 19.0 | 800 MPa | 12.9 |
| M30 | 3.50 | 45.00 | 30.00 | 22.0 | 800 MPa | 12.9 |
๐ Tolerances per ISO 4762. Full range M2โM48 available. Custom lengths up to 500 mm. Contact us for metric socket head cap screw sizes not listed.
Factory-Direct Power
10+ years of export expertise. 30,000 sqm facility with 200+ CNC cold-forming machines. 30% lower cost than distributors.
Certified Quality
ISO 9001, CE, RoHS, and FCC compliant. Full traceability from melt to finish. 12.9 grade guaranteed.
Global Speed
Ex works in 15-25 days. DDP and air freight options. Real-time tracking from Handan to your door.
๐ Where these screws are used
๐ก Case study: A German automation builder reduced assembly rejects by 22% after switching to our M6x20 12.9 grade screws. Request the full case study โ
๐ Trusted by buyers in 30+ countries
โ๏ธ Cold-forming & heat treatment lines
๐ฌ In-house tensile & hardness testing
๐ ISO 9001 ยท CE ยท RoHS ยท FCC ยท UL recognized
๐ Some of our OEM/ODM partners
+ 40 more global brands
Marcus Lindstrรถm
Procurement Manager, Volvo CE (Sweden)
"We switched to Boen for M10 and M12 socket head screws. Lead time dropped from 10 weeks to 3 weeks, and the dimensional consistency is superior to our previous EU supplier."
Sarah Chen
Supply Chain Director, Linamar Corp (Canada)
"The metric socket head cap screw dimensions chart Boen provided matched our CAD specs exactly. Zero rejects in the first 50,000-piece order. We've since consolidated 80% of our fastener spend with them."
๐ฌ Real conversations with our clients (click to expand)
โ Frequently Asked Questions
๐ What is the difference between ISO 4762 and DIN 912 socket head cap screws?
ISO 4762 and DIN 912 are essentially the same dimensional standard. The slight difference is that ISO 4762 has a narrower head height tolerance. Boen Fastener produces to ISO 4762 as default, which meets both standards. Our metric socket head cap screw dimensions chart above follows ISO 4762.
๐ฉ What grades of metric socket head cap screw sizes do you offer?
We stock 12.9 alloy steel (black oxide or zinc plated), A2-70 stainless steel, and A4-80 for marine environments. Custom grades like 10.9 or 8.8 are available upon request. All are fully certified.
๐ Can I get custom lengths beyond the standard metric socket head cap screw sizes?
Absolutely. We offer custom lengths from 2 mm to 500 mm in most diameters. Minimum order quantity for custom lengths is typically 1,000 pcs per size. Contact us for a quote.
๐ข What shipping options do you offer for international buyers?
We provide FOB, CIF, DDP, and EXW terms. Air freight takes 5-7 days, sea freight 20-35 days depending on destination. All shipments are fully insured and tracked. Free samples are available for qualified buyers (you pay shipping).
๐ Do you provide a certificate of conformity and material test reports?
Yes. Every shipment includes a Certificate of Conformance (ISO 9001). Material test reports (MTR) and dimensional inspection reports are available at no extra cost. We also offer third-party inspection (SGS, TรV) at your request.
๐ณ What are your payment terms?
We accept T/T (30% deposit, 70% before shipment), L/C, PayPal, and Western Union. For established clients, net 30 terms may be available after credit review. No hidden fees โ all pricing is transparent.
๐ง Can you help me select the right metric socket head cap screw size for my application?
Of course. Our engineering team can review your drawings and recommend the optimal thread size, grade, and coating. We've helped over 1,200 clients with fastener selection. Send us your requirements โ
๐ Ready to secure your fastener supply chain?
Get factory-direct pricing on every metric socket head cap screw size. Free samples for qualified buyers โ pay only shipping.
๐ง Email: shuan@fastenboen.com ยท mary@fastenboen.com ยท grace@fastenboen.com
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โ๏ธ Written by David Hoffman โ Senior Fastener Engineer & International Trade Advisor
David has 18+ years in the fastener industry, including 12 years at Handan Boen Fastener where he oversees technical compliance and export quality. He has authored over 50 technical guides for OEM buyers and regularly speaks at the International Fastener Expo (IFE).
