8mm Socket Head Cap Screw & M10 1.25 Socket Cap Screw | Factory
โ๏ธ Eliminate high costs, inconsistent quality & long lead times. Get ISO-certified, precision-machined socket head cap screws engineered for automotive, construction & industrial applications โ at factory-direct prices.
โ 10+ Years Export Experience ยท โ 30+ Countries Served ยท โ Full OEM/ODM Support
Every purchasing manager knows the pain: you source a 8mm socket head cap screw at a rock-bottom price, but then face thread galling, head stripping, or inconsistent tensile strength โ leading to costly field failures, production downtime, and damaged supplier relationships.

๐ญ Boen Fastener โ 40,000 sqm manufacturing base in Hebei, China
We engineer 8mm socket head cap screw and M10 1.25 socket cap screw to meet the exacting demands of automotive, construction, and industrial OEMs โ with full traceability and factory-direct economics.
Made from SAE 10.9 / 12.9 alloy steel with strict chemical composition control. Every batch of M10 1.25 socket cap screw undergoes tensile, yield, and hardness testing per ASTM F835.
CNC cold-forming and thread rolling ensure consistent pitch, class 6g tolerance, and smooth drive fit. Our 8mm socket head cap screw delivers repeatable torque values within ยฑ3%.
15โ25 day lead time for standard orders. We stock 20+ tons of raw material ready for immediate production. Express shipping available for urgent projects.
Need custom lengths, drive styles, or coatings? We support full OEM/ODM with rapid prototyping. From M10 1.25 socket cap screw in black oxide to zinc-nickel plating โ we deliver.
Every batch of 8mm socket head cap screw comes with Mill Test Report, heat code traceability, and inspection certificate. Full documentation for your ISO audit.
Eliminate middlemen. Our factory-direct model saves you 18โ35% vs. distributor pricing. Volume discounts from 5,000 pcs. Free samples for qualified buyers.
| Parameter | 8mm Socket Head Cap Screw | M10 1.25 Socket Cap Screw |
|---|---|---|
| Thread Size | M8 x 1.25 | M10 x 1.25 |
| Grade / Property Class | 10.9 / 12.9 (ASTM F835) | 10.9 / 12.9 (ASTM F835) |
| Material | Alloy steel 40Cr / 35CrMo / 42CrMo | Alloy steel 40Cr / 35CrMo / 42CrMo |
| Tensile Strength (min) | 1,040 MPa (10.9) / 1,220 MPa (12.9) | 1,040 MPa (10.9) / 1,220 MPa (12.9) |
| Hardness (HRC) | 32โ39 (10.9) / 39โ44 (12.9) | 32โ39 (10.9) / 39โ44 (12.9) |
| Thread Tolerance | 6g (ISO 965-1) | 6g (ISO 965-1) |
| Coating Options | Black oxide, zinc-plated, hot-dip galvanized, Dacromet, Zn-Ni | Black oxide, zinc-plated, hot-dip galvanized, Dacromet, Zn-Ni |
| Length Range | 16 mm โ 200 mm | 20 mm โ 200 mm |
| Drive Type | Hex socket (Allen key) โ standard | Hex socket (Allen key) โ standard |
| Packaging | Bulk cartons, poly bags, or custom labeling | Bulk cartons, poly bags, or custom labeling |
| Certifications | ISO 9001:2015, CE, RoHS, Reach | ISO 9001:2015, CE, RoHS, Reach |
Engine mounts, transmission housings, suspension components. Our 8mm socket head cap screw provides vibration-resistant clamping force in high-torque environments.
Steel beam connections, scaffolding brackets, safety railings. The M10 1.25 socket cap screw delivers reliable shear strength in demanding structural applications.
Conveyor systems, pumps, presses, packaging machines. Consistent thread engagement and repeatable preload reduce maintenance intervals.
Tractor attachments, harvesters, irrigation systems. Zinc-nickel coated M10 1.25 socket cap screw offers 1,000+ hr salt spray resistance.
Solar panel racking, wind turbine internals, battery storage enclosures. Our 8mm socket head cap screw meets DIN 912 / ISO 4762 standards for global projects.
Ready stock for Amazon, Shopify, and wholesale distributors. Custom branding and poly bag / blister pack options available.
Handan Boen Fastener Manufacturing Co., Ltd. (Est. 2010) operates a 40,000 sqm production facility in Hebei, China โ one of the country's largest fastener manufacturing hubs.

๐ง Cold-forming & CNC machining lines

๐ In-house metallurgical lab & torque testing

๐ฆ 10,000+ sqm warehouse with ready stock
+ 50+ more partnersAll 8mm socket head cap screw and M10 1.25 socket cap screw are manufactured in accordance with international standards. We provide full documentation for your compliance audit.



Michael R. โ Procurement Manager, Germany
โ โ โ โ โ
"We switched our M10 1.25 socket cap screw supply to Boen and saw 22% cost savings with better consistency. Their tensile test reports give us confidence in every batch."

Sofia L. โ Supply Chain Director, Spain
โ โ โ โ โ
"The 8mm socket head cap screw from Boen delivered zero defects in 50,000 pcs. Their logistics team kept us updated daily. Reliable partner."

James T. โ Operations Manager, UK
โ โ โ โ โ
"Fast response, OEM branding on every box, and the M10 1.25 socket cap screw dimensions were spot-on. Lead time was 18 days โ faster than any Chinese supplier we've worked with."
๐น What grades do you offer for 8mm socket head cap screw?
We offer grade 10.9 and 12.9 per ASTM F835 / DIN 912. Grade 12.9 is ideal for high-stress applications where maximum tensile strength is required.
๐น What is the minimum order quantity for M10 1.25 socket cap screw?
Standard MOQ is 5,000 pcs per size. For trial orders, we can accommodate 1,000 pcs at a small premium. Free samples available for qualified buyers.
๐น Do you provide custom length or coating options?
Yes, we offer full OEM/ODM customization. You can specify length, drive type, coating (zinc, black oxide, Dacromet, Zn-Ni), and packaging. Custom samples in 7โ10 days.
๐น What certifications do you have for export to Europe / USA?
We are ISO 9001:2015 certified, with CE, RoHS, and REACH compliance. Mill Test Reports and inspection certificates are provided with every shipment.
๐น What are your typical lead times and shipping terms?
Standard production is 15โ25 days after deposit. We ship via FOB Tianjin / Shanghai, CIF, or DDP depending on your preference. Express freight (DHL/FedEx) available for small orders.
๐น How do you ensure quality consistency for bulk orders?
We implement in-process inspection at every stage โ from raw material chemical analysis to final torque testing. AQL 1.0 level II sampling per ISO 2859 for outgoing lots.
๐น Can I get a sample before placing a bulk order?
Absolutely. We provide free samples for 8mm socket head cap screw and M10 1.25 socket cap screw (you pay shipping). Request via our contact form or WhatsApp.
๐น What payment methods do you accept?
We accept T/T (bank transfer), L/C at sight, and Alibaba Trade Assurance. For new customers, 30% deposit / 70% against B/L copy is standard.

โ๏ธ About the Author
David Chen โ Senior Technical Director, Boen Fastener
With 14+ years in industrial fastener engineering and export, David has overseen 500+ B2B projects across automotive, construction, and energy sectors. He leads Boen's quality team and is a frequent speaker on fastener standards and supply chain optimization. His technical insights have helped clients reduce procurement costs by an average of 24% while improving reliability.
โณ Limited-time offer: Free samples + fast-track production for first-time buyers.
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Risk-free: Full money-back guarantee if quality doesn't meet specification.
๐ง shuan@fastenboen.com ยท ๐ +86 15630072814 ยท ๐ฌ WhatsApp
Handan Boen Fastener Manufacturing Co., Ltd. ยท Hanguang Industrial Park, Yongnian District, Handan, Hebei, China
MonโSat 09:00 โ 17:00 ยท Contact us