Socket Cap Screw Sizes & Socket Cap Screw Torque Chart | Factory
Socket Cap Screw Sizes & Socket Cap Screw Torque Chart – Precision You Can Trust
Stop guessing torque values and wasting time on returns. Get the complete socket cap screw sizes chart and factory-validated torque data — engineered for automotive, construction & industrial OEMs.
✅ 30+ countries served | ✅ ISO 9001 | ✅ Free samples available
⚡ The Real Cost of Getting Fastener Specs Wrong
Every year, procurement teams lose thousands because of mismatched socket cap screw sizes or incorrect torque application. Here are the pains we hear most:
Wrong size = production halt
A single mismatched socket cap screw can stop an assembly line for hours. Over 23% of fastener returns are due to size confusion.
Torque guesswork costs money
Without a reliable socket cap screw torque chart, over-torquing leads to thread stripping and under-torquing causes joint failure.
Hidden import costs
Low-cost suppliers often hide grade inconsistencies, leading to failed certifications and unexpected re-sourcing fees.
No data, no confidence
Engineering teams need traceable specs. Without a proper torque chart, approval cycles stretch for weeks.
✅ Engineered for Accuracy – Our Socket Cap Screw Range
From M3 to M48, we manufacture every socket cap screw with traceable raw materials and certified heat treatment. Here’s what sets us apart:
Full Size Coverage
We stock socket cap screw sizes from M3 x 0.5 up to M48 x 5.0, including inch-series #4 to 1½". All dimensions per ISO 4762 / DIN 912 / ASME B18.3.
Factory-Validated Torque Data
Our socket cap screw torque chart is tested on our own production floor — not copied from generic sources. Includes clamp load, yield strength, and recommended tightening torque.
OEM/ODM & Custom
Need a non-standard head height or special coating? We support custom socket cap screw sizes with fast turnaround — MOQ as low as 500 pcs for prototypes.
📊 Socket Cap Screw Sizes & Torque Chart (Metric – Grade 12.9)
| Thread Size | Pitch (mm) | Head Dia. (mm) | Hex Size (mm) | Max Torque (N·m) | Clamp Load (kN) |
|---|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 2.5 | 1.2 | 2.9 |
| M4 | 0.7 | 7.0 | 3.0 | 2.8 | 5.3 |
| M5 | 0.8 | 8.5 | 4.0 | 5.5 | 8.6 |
| M6 | 1.0 | 10.0 | 5.0 | 9.5 | 12.2 |
| M8 | 1.25 | 13.0 | 6.0 | 23.0 | 22.0 |
| M10 | 1.5 | 16.0 | 8.0 | 46.0 | 35.0 |
| M12 | 1.75 | 18.0 | 10.0 | 79.0 | 51.0 |
| M16 | 2.0 | 24.0 | 14.0 | 196.0 | 95.0 |
* Values based on grade 12.9 alloy steel, zinc-plated, μ=0.14 thread friction. Always verify with actual joint conditions. Full socket cap screw torque chart for inch-series and stainless grades available on request.
Automotive engine mounts
Steel structure connections
Agricultural machinery
Energy sector equipment
🏆 Trusted by Global Engineering Teams
"We reduced fastener rejection by 34% after switching to Boen's socket cap screws. The torque chart matched our actual tests perfectly."
"The socket cap screw sizes they offer cover everything we need. Custom M14 x 1.5 was delivered in 12 days. Incredible."
"Finally a supplier who shares real torque data. Their socket cap screw torque chart saved us from a costly redesign."
💬 Real Conversations with Our Clients
❓ Frequently Asked Questions
📌 What socket cap screw sizes do you offer in stock?
We stock metric sizes from M3 to M48 and inch sizes from #4 to 1½" in grades 8.8, 10.9, and 12.9. Custom socket cap screw sizes are available with short lead times. Contact us for a full list.
📌 Is the socket cap screw torque chart applicable for stainless steel?
Yes, we provide a separate socket cap screw torque chart for A2-70 and A4-80 stainless grades. Torque values are typically 20-30% lower than alloy steel due to different friction characteristics.
📌 How do I request a custom socket cap screw size?
Simply send your drawing or specs to shuan@fastenboen.com. We offer OEM/ODM with MOQ as low as 500 pieces for prototypes. Typical turnaround is 10-15 working days.
📌 Do you provide free samples for testing?
Absolutely. We offer free samples for qualified buyers. You only pay shipping. This allows you to validate our socket cap screw sizes and torque data before committing to bulk orders.
📌 What certifications do your socket cap screws carry?
Our products are certified with ISO 9001, CE, UL, RoHS, and FCC. We also provide batch traceability reports and material certificates upon request.
📌 How do you handle shipping to USA/Europe?
We ship via sea, air, or express (DHL/FedEx). For typical orders to the USA or Europe, sea freight takes 25-30 days, air freight 5-7 days. We handle all customs documentation.
📌 What is your return policy for non-conforming products?
We offer a 100% replacement or full refund for any products that do not meet agreed specifications. Our quality team inspects every batch before shipment.
James leads our product validation team at Handan Boen Fastener. He has authored over 40 technical guides on bolted joints and has trained procurement teams across 12 countries. Every torque value in this article is verified on our shop floor.
Stop Guessing. Start Fastening with Confidence.
Get your free socket cap screw torque chart + personalized quote within 24 hours. Limited-time: free samples for first-time buyers.
📧 shuan@fastenboen.com | mary@fastenboen.com | grace@fastenboen.com | stella@fastenboen.com
Hanguang Industrial Park, Yongnian District, Handan, Hebei, China | Daily 09:00 – 17:00
✅ 100% replacement guarantee | ✅ ISO 9001 | ✅ 30+ countries served
⭐ What Our Customers Say About Our Socket Cap Screws
"The socket cap screw sizes chart from Boen is the most accurate I've used. We've cut our inspection time by 40%."
"Their socket cap screw torque chart matched our lab tests within 3%. That's reliability we can bank on."
"Fast delivery, excellent communication, and the socket cap screws performed flawlessly in our oil rig maintenance."
📋 Need a specific socket cap screw size or torque data? Click here to request your custom chart →
