Flanged Socket Head Cap Screws & Flanged Socket Screws | Maker
โก Solve high-cost, low-quality fastener sourcing โ Factory-direct pricing, ISO-certified production, and same-day dispatch for OEMs, distributors, and procurement teams.
For procurement managers and technical directors, every fastener decision impacts your bottom line, production line, and reputation.
Markups from intermediaries add 18โ35% to your fastener spend. Plus, unexpected shipping surcharges erode margins.
Batch-to-batch variation in flanged socket head cap screws leads to assembly failures, downtime, and costly rework. Rejection rates above 3% are common.
Standard supply chains from Asia take 35โ50 days. When a production line stops, every hour of delay costs thousands.
Missing or forged ISO, CE, or RoHS documents can disqualify your products in regulated markets, causing shipment holds at customs.
โ You need a partner who delivers flanged socket head screws with consistent quality, competitive pricing, and full traceability.
With 10+ years of export expertise and a dedicated factory in Hebei, China, we deliver flanged socket head screws that meet or exceed ASTM, DIN, and ISO standards โ at factory-direct pricing.
The integrated flange eliminates the need for a separate washer, reducing assembly time by up to 25% and providing a larger bearing surface for higher clamp loads.
Available in 10.9, 12.9 alloy steel, 304, 316 stainless, and A2/A4. All materials are mill-certified with full chemical and mechanical traceability.
Every batch of flanged socket head screws is manufactured under strict quality control โ from cold heading to heat treatment, thread rolling, and 100% dimensional inspection.
Stock orders ship within 3โ5 days; OEM/ODM custom runs in 15โ20 days. We handle all logistics, including FOB, CIF, and DDP terms.
Need a specific drive size, thread length, flange diameter, or coating? Our engineering team supports custom flanged socket head cap screws with fast turnaround and low MOQs.
| Parameter | Available Range | Standard | Grade / Material |
|---|---|---|---|
| Thread Size | M3 โ M24 (coarse & fine) | DIN 912, ISO 4762, ASTM A574 | 10.9 / 12.9 / A2-70 / A4-80 |
| Flange Diameter | 6.5 mm โ 32.0 mm | DIN 6921, ISO 10673 | Carbon steel, alloy steel, 304/316 |
| Head Height | 3.0 mm โ 16.0 mm | DIN 912, ISO 4762 | Alloy steel, stainless |
| Drive Type | Hex socket (Allen), Torxยฎ, Phillips | ASME B18.3, ISO 898 | โ |
| Surface Finish | Black oxide, zinc plated, HDG, Dacromet, plain | ASTM B633, ISO 4042, RoHS | โ |
| Hardness (Rockwell) | HRC 32 โ HRC 45 (10.9/12.9) | ISO 898-1, ASTM F606 | Alloy steel, heat-treated |
| Certifications | ISO 9001:2015, CE, RoHS, REACH | โ | โ |
Custom sizes, materials, and coatings available upon request. Contact our engineering team for a tailored solution.
Agricultural Machinery
High-vibration assemblies
Automotive & Truck
Engine, chassis, suspension
Construction & Structural
Steel framing, heavy equipment
Industrial Machinery
Robotics, conveyors, presses
Our flanged socket head cap screws are specified by engineers and procurement teams across 30+ countries.

Our 12,000 sqm production facility in Handan, Hebei โ dedicated to precision fastener manufacturing.



"We switched to Boen's flanged socket head cap screws for our tractor assembly line. Rejection rate dropped from 4.2% to 0.3% โ and we saved 22% on unit cost."
โ Miguel R.,
Sr. Procurement Manager, AgriParts USA
"Consistent quality and fast shipping. The ISO certification and full material traceability gave us confidence for our automotive OEM line."
โ Elena V.,
Technical Director, EuroTruck GmbH
"We needed custom flanged socket head screws with a special flange diameter for a robotics project. Boen delivered prototypes in 10 days โ perfect fit."
โ David L.,
Operations Manager, AutoBot Robotics
The key difference is the integrated flange under the head. A flanged socket head cap screw has a wider bearing surface that distributes the clamping load over a larger area, eliminating the need for a separate washer. This reduces assembly time and improves joint integrity, especially in high-vibration applications.
We offer alloy steel (10.9, 12.9), stainless steel (A2-70, A4-80, 304, 316), and carbon steel grades. Each material is mill-certified and fully traceable. For corrosive or high-temperature environments, we recommend stainless steel or zinc-alloy coated options.
Yes, absolutely. Our engineering team supports custom thread lengths, flange diameters, drive types, and surface finishes. MOQs are flexible, and we can produce prototypes in as fast as 7โ10 working days. Send your drawing or specification for a quick quote.
Our production facility is ISO 9001:2015 certified. All flanged socket head cap screws meet or exceed DIN 912, ISO 4762, ASTM A574, and ASME B18.3 standards. We also provide CE, RoHS, and REACH compliance documentation upon request.
Stock orders of standard flanged socket head screws are dispatched within 3โ5 working days. Custom orders typically take 15โ20 working days. We ship via FOB, CIF, DDP, or EXW โ with air, sea, and express options. Shipping to the US and Europe averages 12โ18 days by sea.
For standard sizes and materials, our MOQ is 1,000 pieces per size. For custom OEM/ODM projects, the MOQ depends on complexity โ typically 2,000โ5,000 pieces. We also offer sample orders (up to 50 pieces) for qualification before bulk production.
We follow a 3-stage quality control process: (1) incoming material inspection with chemical analysis, (2) in-process dimensional and hardness checks, and (3) final inspection with torque testing, thread gauging, and surface finish verification. A Certificate of Conformance (CoC) is included with every shipment.
Yes, we provide free samples (up to 20 pieces) for qualified buyers. You only pay for shipping. This allows you to evaluate the flanged socket head cap screws in your own application before committing to a larger order. Contact us with your requirements.
Hear directly from procurement and engineering professionals who use our flanged socket head cap screws in their daily operations.
James H. โ
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"We use Boen's flanged socket head screws in our heavy equipment line. The consistency of the heat treatment and thread quality is outstanding. Reduced our assembly torque failures by 60%."
โ Chief Engineer, Midwest Industrial Solutions, USA
Sofia K. โ
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"The factory-direct pricing on flanged socket head cap screws saved us 27% compared to our previous European supplier. Delivery was 8 days early. Very impressed with the communication."
โ Procurement Manager, BauTech AG, Germany
Tom L. โ
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"We needed a custom flange diameter for a robotics arm joint. The Boen team quickly understood our spec and delivered a perfect batch of flanged socket head screws in 9 days. Highly recommended for OEM work."
โ Design Engineer, FlexMotion Robotics, UK

David Chen is a Senior Fastener Engineer at Handan Boen Fastener Manufacturing Co., Ltd., with 12 years of experience in cold heading, heat treatment, and threaded fastener design. He has overseen more than 800 export projects for flanged socket head cap screws and other precision fasteners, working directly with OEMs in Europe, the Americas, and Southeast Asia. David regularly contributes to industry standards discussions and is a member of the China Fastener Industry Association (CFIA).
Get a free quote in 24 hours โ including technical specs, pricing, and lead time. No minimum commitment for samples.
๐ Phone: +86 15630072814 / +86 13293070568 | ๐ง Alternate: mary@fastenboen.com, grace@fastenboen.com, stella@fastenboen.com
๐ Hanguang Industrial Park, Yongnian District, Handan City, Hebei Province, China | Working hours: MonโSun, 09:00โ17:00