10-32 Flat Head Cap Screw Dimensions & 10-32 Socket Head | Buy
🇺🇸 Engineered for US & European buyers who need precision-threaded #10-32 flat head & socket head cap screws with full traceability, ISO 898-1 compliance, and lead times as short as 12 working days.

Every month we hear the same stories from purchasing managers and technical directors across the US, UK, and Germany.
Whether you need 10-32 flat head cap screw dimensions per ASME B18.6.3 or 10-32 socket head cap screw dimensions per ASME B18.3, we deliver within ±0.002″.
| Parameter | 10-32 Flat Head (ASME B18.6.3) | 10-32 Socket Head (ASME B18.3) |
|---|---|---|
| Thread size | #10-32 UNF | #10-32 UNF |
| Head diameter (max) | 0.385″ | 0.310″ |
| Head height (max) | 0.120″ | 0.198″ |
| Drive type | Phillips #2 / Torx T10 | Hex 5/32″ |
| Typical tensile strength | 100,000 – 120,000 psi (SS) | 160,000 – 180,000 psi (12.9) |
| Countersink angle | 82° ± 1° | N/A (socket head) |
+ 20 more
📸 CNC line, Handan facility
“We switched to Boen for our 10-32 socket head cap screws after recurring thread issues with our previous supplier. Their dimensional consistency is excellent — zero rejects in the last 6 shipments. The 12-day lead time saves us 3 weeks vs. our old source.”

RoHS · REACH · ISO 898-1 · ASTM F837


📱 Direct line to our sales team — response in < 30 min during business hours
Per ASME B18.6.3: thread #10-32 UNF, head diameter 0.375″–0.385″, head height 0.112″–0.120″, countersink 82° ± 1°. Lengths from 3/8″ to 2″. We provide a full dimensional report with every batch.
Per ASME B18.3: head diameter 0.302″–0.310″, head height 0.190″–0.198″, hex key 5/32″. Tensile up to 180,000 psi (grade 12.9). We stock alloy steel, 316 SS, and super alloys.
MOQ: 2,000 pcs per size (standard). Lead time: 12–18 working days for stock items, 20–25 days for custom specs. Express shipping available (DHL, FedEx) — door-to-door in 5–7 days.
T/T bank transfer, L/C (confirmed), PayPal (for samples), and Alibaba Trade Assurance. For US/EU buyers, we offer net 30 terms after 3 successful orders.
Yes — ISO 9001:2015, CE, RoHS, REACH, and mill test reports. We also provide PPAP Level 3 for automotive and aerospace buyers upon request.
Absolutely. Free samples for qualified buyers (you pay shipping). Request up to 10 pieces of any size — we’ll ship within 48 hours.
Yes — we ship to 30+ countries including USA, UK, Germany, France, Italy, Netherlands, and Australia. We handle customs documentation and DDP terms are available.
We offer 100% replacement or full refund for any non-conforming parts. Our quality team issues a corrective action report within 48 hours. <0.3% defect rate in 2025.
“The 10-32 socket head cap screw dimensions matched our drawings exactly. We’ve been using them in our robotic arms for 4 months — zero failures. Shipping was 11 days to Texas.”

“We needed 10-32 flat head screws for a marine application — 316 SS. Boen provided full material certs and salt spray results. Competitive pricing and fast responses. Will reorder.”

“Good quality socket head cap screws. The threads are clean and consistent. Only suggestion: more packaging options for small quantities. Otherwise, very satisfied.”

“We compared 5 suppliers. Boen offered the best balance of price, lead time, and quality. Their 10-32 flat head screws are now standard in our production line.”


Senior fastener engineer & international trade specialist with 14 years in the industry. James oversees quality assurance at Boen Fastener and has helped 200+ B2B clients in 30 countries select the correct threaded fasteners for their applications. He is a certified ISO 9001 internal auditor.
Free samples · 12-day lead time · Full traceability — No minimum commitment for first order.