Socket Cap Screw Chart & Socket Cap Screw Size Chart | Maker
๐บ๐ธ ๐ช๐บ Engineered for global buyers โ stop guessing dimensions, reduce costly errors, and source with factory-direct precision from a 10+ year ISO-certified Chinese manufacturer.
๐ฅ Get Free Quote in 24h + Full Size Chart PDFโ Free samples ยท โ OEM/ODM ยท โ 30+ countries shipped
Every year, procurement and engineering teams waste thousands of dollars on mismatched socket cap screws โ incorrect head height, wrong thread pitch, or substandard material strength. Here are the 5 most expensive mistakes we see:
๐ Guessing dimensions โ No reliable socket cap screw chart leads to 12%+ assembly rejects.
๐ฐ Overpaying per unit โ Distributor markups of 30-45% eat your margin.
๐ฉ Inconsistent quality โ Batch-to-batch variation causes rework and safety risks.
๐ข Hidden shipping costs โ Rush orders from unreliable suppliers double logistics expense.
๐ Compliance gaps โ Missing ASTM/ISO certifications block your export shipments.
๐ You no longer have to settle. A precise, factory-verified socket cap screw size chart is your first step to zero-defect procurement.
Our data is based on ISO 4762 / DIN 912 / ASME B18.3 standards. Use this chart to verify your next order.
| Thread Size (M) | Pitch (mm) | Head Diameter (mm) | Head Height (mm) | Hex Socket Size (mm) | Tensile Strength (Grade 12.9) |
|---|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 3.0 | 2.5 | 1220 MPa |
| M4 | 0.7 | 7.0 | 4.0 | 3.0 | 1220 MPa |
| M5 | 0.8 | 8.5 | 5.0 | 4.0 | 1220 MPa |
| M6 | 1.0 | 10.0 | 6.0 | 5.0 | 1220 MPa |
| M8 | 1.25 | 13.0 | 8.0 | 6.0 | 1220 MPa |
| M10 | 1.5 | 16.0 | 10.0 | 8.0 | 1220 MPa |
| M12 | 1.75 | 18.0 | 12.0 | 10.0 | 1220 MPa |
๐ Need inch-series (UNC/UNF) data? Download our full socket cap screw size chart PDF โ includes #0 through 1" diameters.
Own production line โ 10+ years export. No middlemen, up to 40% cost saving vs. distributors.
ISO 9001, CE, RoHS. Hardness, tensile, and salt spray testing on every batch.
Custom head marking, material (304SS, 316SS, 12.9 alloy), and packaging in 15-25 days.
High-vibration joints โ our grade 12.9 socket cap screws reduce loosening failures by 37% in field tests.
Battery pack housings, motor mounts, brake systems โ zero ppm quality target achieved for 3 consecutive years.
Tower crane, scaffolding, steel structure โ full traceability with heat number and mill certificate.
Precision alignment, repeatable torque โ socket cap screw size chart ensures interchangeability across 50+ robot models.


โWe switched to Boen for M6-M12 socket cap screws. The socket cap screw size chart matched our existing stock perfectly. 15% cost reduction and zero defects in 9 months.โ

โThe socket cap screw chart from Boen is now part of our engineering handbook. Lead time reduced from 6 weeks to 18 days โ incredible.โ
Est. 2010, Hanguang Industrial Park, Yongnian District, Handan, Hebei. 10+ years of export expertise โ from raw material to finished product, every batch is tracked.
๐ +86 15630072814 ยท โ๏ธ shuan@fastenboen.com




๐ง david.chen@boenfasteners.com
โ What is the difference between a socket cap screw and a hex bolt?
A socket cap screw has a cylindrical head with an internal hex drive, allowing higher torque and a lower profile. Our socket cap screw chart shows all head dimensions for easy substitution.
โ How do I use the socket cap screw size chart for a replacement?
Measure the thread diameter, pitch, and head height of your existing screw. Match it with our socket cap screw size chart โ we also offer free sample verification.
โ Can you customize head markings or materials?
Yes. We offer OEM/ODM: laser marking, custom alloy (304, 316, 4140, 12.9), and special coating (Dacromet, zinc-nickel, black oxide). MOQ from 5000 pcs.
โ What are your shipping terms and lead times?
Standard lead time 15-25 days. Shipping via FOB Tianjin, CIF to major US/European ports. Free samples available (you pay shipping).
โ Do you provide certificates of compliance?
Absolutely. ISO 9001, CE, RoHS, FCC, UL, and material test reports (MTR) are included with every shipment. We also support third-party inspections.
โ What is the minimum order quantity?
For standard sizes from our socket cap screw size chart, MOQ is 2000 pcs per size. For custom orders, MOQ is 5000 pcs.
Get your free socket cap screw size chart PDF + a personalized quote within 24 hours.
๐ +86 15630072814 ยท โ๏ธ shuan@fastenboen.com ยท ๐ MonโSat 09:00โ17:00 CST
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