1 2 4 5 6 8 10 18 24 32 40 SHCS Dimensions Spec | OEM
Complete Socket Head Cap Screw Dimensions & Specs Guide 1/2 to 40 SHCS | OEM Excellence
Eliminate specification mismatches and供应链 delays. Get factory-direct 10-32, 1/4-20, 5/16-18, 3/8-16, 1/2-13 SHCS with full dimensional traceability, ISO-certified quality, and 10-day OEM lead times.
⚠️ The Hidden Cost of Wrong Socket Head Cap Screw Dimensions
Every year, procurement and engineering teams lose 3–7% of their fastener budget due to dimensional mismatches, poor thread fit, and unreliable suppliers. Here are the most common pain points we hear from B2B buyers in 2026:
Confusing dimension standards
Mixing up 10-32 SHCS dimensions with 1/4-20 SHCS dimensions leads to costly rework. A single error can delay assembly lines by 2–3 days.
Hidden TCO from poor quality
Low-cost fasteners that fail torque tests increase total cost of ownership by up to 23% due to field failures and warranty claims.
OEM tolerance mismatches
Custom 1/2-13 SHCS dimensions or 5/16-18 SHCS dimensions that deviate from ASME B18.3 cause rejection rates above 8%.
Supply chain & lead time risks
Global shipping volatility means 45+ day lead times are common. Without a high-speed OEM partner, production schedules are at risk.
👉 These are exactly the problems Handan Boen Fastener solves with precision SHCS and OEM expertise.
🔧 Precision Socket Head Cap Screws: Your Complete OEM Solution
We manufacture all standard SHCS sizes from #10-32 to 1-1/2"-6 in alloy steel, 304/316 stainless, and 12.9-grade. Every batch is dimensionally verified to ASME B18.3 / ISO 4762. Our OEM/ODM service covers custom head markings, drive types, coatings, and packaging.
Powerful Factory
10+ years, 30+ countries, 10,000+ tons annual output. ISO 9001:2015 certified.
Quality Assurance
100% dimensional inspection, torque testing, and material certs (CE, RoHS, FCC).
High-Speed Delivery
OEM samples in 7 days, production in 10–15 days. Factory-direct pricing saves 15–30%.
📊 Complete SHCS Dimensions Table (ASME B18.3 / ISO 4762)
All dimensions in inches (mm). *Nominal thread diameter. Key sizes used by OEM buyers:
| Thread Size | Basic Dia. (in) | Head Dia. (in) | Head Height (in) | Hex Key Size (in) | Thread Pitch (TPI) |
|---|---|---|---|---|---|
| #10-32 SHCS | 0.190 | 0.302 | 0.115 | 5/32 | 32 |
| 1/4-20 SHCS | 0.250 | 0.375 | 0.188 | 3/16 | 20 |
| 5/16-18 SHCS | 0.3125 | 0.469 | 0.235 | 1/4 | 18 |
| 3/8-16 SHCS | 0.375 | 0.562 | 0.281 | 5/16 | 16 |
| 1/2-13 SHCS | 0.500 | 0.750 | 0.375 | 3/8 | 13 |
| 5/8-11 SHCS | 0.625 | 0.938 | 0.469 | 1/2 | 11 |
| 3/4-10 SHCS | 0.750 | 1.125 | 0.562 | 5/8 | 10 |
| 1"-8 SHCS | 1.000 | 1.500 | 0.750 | 3/4 | 8 |
📌 Note: We also supply 4-40, 6-32, 8-32, 10-24, 5/16-24, 1/2-20, 3/4-16, 1"-14 and all metric sizes M2–M48. Contact us for custom length and coating.
🔩 Application Scenarios & Industry Use
High-torque 5/8-11 SHCS and 3/4-10 SHCS used in harvesters and tractors. Our 12.9-grade alloy steel withstands extreme vibration.
Precision 1/4-20 SHCS and 5/16-18 SHCS for battery packs, motor mounts, and chassis components. OEM-approved.
Heavy-duty 1-1/2"-6 SHCS and 1"-8 SHCS for steel connections, formwork, and bridge components.
Miniature #10-32 SHCS and 6-32 SHCS for robotic arms, linear guides, and servo mounts.
👉 Submit your SHCS dimension requirements for a free engineering review and sample kit.
🏭 Trusted by 200+ B2B Buyers Across 30 Countries
+ RoHS, REACH, IATF 16949 (pending)
+ 50+ OEM partners
❓ Frequently Asked Questions About SHCS Dimensions & OEM
A: #10-32 SHCS has a thread diameter of 0.190 in, head diameter 0.302 in, head height 0.115 in, and uses a 5/32 hex key. We supply in lengths from 1/4" to 4".
A: 1/4-20 has a 0.250 in dia. with 20 TPI; 5/16-18 has 0.3125 in dia. with 18 TPI. Head diameter is 0.375 in vs 0.469 in. Both are common in automotive and industrial assemblies.
A: Yes. 4-40 (0.112 in dia., 40 TPI) and 6-32 (0.138 in dia., 32 TPI) are stocked in 304 stainless and alloy steel. Ideal for PCB mounting and instrumentation.
A: 8-32 (0.164 in dia., 32 TPI) and 10-24 (0.190 in dia., 24 TPI) are available in plain, black oxide, and zinc-plated finishes. Custom lengths welcome.
A: Use 3/8-16 (0.375 in dia.) for higher shear strength. Our engineering team can provide a free torque/clamp load analysis for your specific joint design.
A: Absolutely. We provide OEM/ODM with custom laser marking, bulk packaging, kit assembly, and barcode labels. MOQ: 5,000 pcs per size.
A: Standard lead time is 10–15 working days. Express service (5–7 days) available for urgent orders. Free samples ship within 48 hours.
A: T/T, L/C, PayPal (for samples). Shipping via FOB Tianjin, CIF, or DDP. We handle all documentation including COO, packing list, and insurance.
⭐ Real Reviews from Global Buyers
"We replaced three suppliers with Boen for 1/4-20 and 5/16-18 SHCS. 17% cost reduction and zero tolerance issues in 6 months. Their OEM service is world-class."
"Boen's 10-32 SHCS and 1/2-13 SHCS are now spec'd across our production lines. Delivery reliability is 98.5% — unmatched in the fastener industry."
"The 5/8-11 SHCS and 3/4-10 SHCS we ordered for our harvesters exceeded grade 12.9 specs. Torque consistency improved by 22%."
Senior Fastener Design Engineer & International Trade Specialist at Handan Boen Fastener. With 14 years in precision fastening and OEM manufacturing, David has overseen 500+ custom SHCS projects for automotive, agriculture, and energy clients across Europe and the Americas. He is a certified ASME B18.3 compliance auditor.
🚀 Get Your SHCS OEM Quote & Free Samples
Limited-time: Free sample kit (up to 5 sizes) for first-time OEM buyers. Submit your SHCS dimension list and get a price quote within 24 hours.
📞 +86 15630072814
✉️ shuan@fastenboen.com
🕐 Daily 09 am – 05 pm (GMT+8)
✅ 100% dimensional guarantee · ✅ ISO 9001:2015 & CE certified · ✅ Factory-direct pricing · ✅ 10-day OEM lead time
