7/16-20 Socket Head Cap Screw & 7/16 Socket Head Screw | Wholesale
⚙️ Engineered for heavy-duty holding. ASME B18.3 compliant — cut your fastener cost by up to 37% with zero quality compromise.
✅ Factory-direct pricing · ISO 9001 · 10+ yr export expertise · 30+ countries
Every purchasing manager knows the pain. Here’s what keeps you up at night:
Distributor markups add 30–50% — your margin bleeds.
Thread failures, soft alloy, wrong hardness — costly rework.
Small orders from multiple suppliers = freight nightmare.
6–8 weeks from traditional suppliers — you can’t wait.
Missing certificates (RoHS, CE, ISO) block your shipment.
You’re stuck with defective stock — no one answers.
👉 You deserve better. A partner that delivers 7/16-20 socket head cap screws at wholesale price, with certified quality and fast global logistics.
Our 7/16 socket head cap screws meet ASME B18.3, ASTM A574, and SAE J429 Grade 8 standards. Precision cold-formed, heat-treated, and surface-finished for maximum torque & durability.
| Parameter | Specification | Notes |
|---|---|---|
| Thread Size | 7/16-20 UNF | 20 threads per inch, fine thread series |
| Diameter | 0.4375 in (7/16″) | Nominal shank diameter |
| Drive Type | Hex Socket (Allen) | Standard hex key size: 3/8″ |
| Material Options | Alloy steel 4140, 304 SS, 316 SS | Zinc, black oxide, or HDG plating |
| Hardness | HRC 38–42 (Grade 8) | Consistent core hardness |
| Tensile Strength | ≥ 150,000 psi | Exceeds ASTM A574 |
| Standards | ASME B18.3 · ASTM A574 · SAE J429 | Full traceability & inspection |
| Certifications | ISO 9001, RoHS, CE, UKCA | Available upon request |
50,000+ sqm facility, 200+ skilled workers, 15 production lines. Monthly output: 12 million+ pieces of socket head screws.
In-house lab: hardness tester, torque analyzer, salt spray chamber, thread ring gauges. 100% inspection before shipment.
Ship from stock in 5–7 days; custom orders in 15–20 days. Express sea/air to USA, Europe, SEA.
Custom head markings, special coatings, non-standard lengths, mixed material batches. Your brand, your spec.
Case: A US agricultural OEM switched to our 7/16 socket head cap screws and saved $187,000/year — with zero field failures in 18 months.
“7/16-20” specifies the thread — 20 threads per inch (UNF). “7/16 socket head screw” is a broader term. At Boen, we supply both 7/16-20 socket head cap screws (fine thread) and 7/16-14 (UNC) coarse thread. Always confirm your thread pitch for proper fit.
We stock alloy steel 4140 (Grade 8), 304 stainless steel, and 316 stainless steel. Surface finishes include zinc-plated, black oxide, hot-dip galvanized, and Dacromet. Custom materials are available for OEM orders.
Yes. Every shipment of 7/16 socket head cap screws includes a mill test certificate, material traceability report, and, if required, a third-party inspection report. We are ISO 9001, CE, and RoHS certified.
For stock sizes, MOQ is 2,000 pieces per size. For custom lengths or special coatings, MOQ is 5,000–10,000 pieces. We also offer sample orders (50–100 pcs) for qualification.
We ship via sea freight (FOB, CIF, DDP) and air express (DHL, FedEx, UPS). Typical transit: 18–25 days sea, 5–7 days air. We consolidate orders to reduce your shipping cost.
Absolutely. We offer OEM/ODM with your logo, barcode, or part number. Packaging options include bulk cartons, poly bags, blister packs, and branded boxes with your labeling.
We offer a 100% replacement or refund for any manufacturing defect. Our quality team will review the issue within 48 hours. We stand behind every 7/16-20 socket head cap screw we ship.
Simply fill the form below, email us at shuan@fastenboen.com, or WhatsApp +86 15630072814. We’ll respond with a wholesale price list within 24 hours.
“Perfect thread fit, zero defects.”
We ordered 50,000 pcs of 7/16-20 socket head cap screws for our assembly line. Every batch passed our torque test. Boen’s quality is outstanding.
“Best wholesale price I’ve found.”
After comparing 6 suppliers, Boen offered the best value for 7/16 socket head screws. Shipping was fast, and the documentation was perfect for customs.
“OEM customization was seamless.”
We needed custom head marking and a special coating. Boen’s team handled it professionally. The 7/16-20 socket head cap screws arrived exactly as specified.

📸 Our team provides instant quotes, quality photos, and logistics updates.

With 14+ years in industrial fasteners, I’ve overseen the production of over 200 million socket head screws. I’m passionate about helping buyers get certified, cost-effective 7/16-20 socket head cap screws with transparent supply chain. Let’s build something reliable.
Wholesale pricing · Fast delivery · Full compliance · 24h quote response
📧 shuan@fastenboen.com | 📞 +86 15630072814 | 💬 WhatsApp / WeChat
⏳ Limited-time: free sample for first-time wholesale orders · 100% money-back guarantee on quality defects
🤝 Trusted by Industry Leaders Worldwide
Purchasing Manager, US Agrimach
“We switched to Boen’s 7/16-20 socket head cap screws and cut our fastener spend by 32%. The quality is consistent, and their lead times are half of our previous supplier.”
Supply Chain Director, EuroTec GmbH
“Excellent communication, full certification pack, and the screws passed our torque testing with flying colors. A reliable partner for 7/16 socket head screws.”
Operations Manager, NorCal Construction
“We needed a large volume of 7/16-20 socket head cap screws for a critical project. Boen delivered in 18 days, and the pricing was 27% better than the next bid.”