M16 Socket Head Cap Screw & M18 Socket Head Cap Screw | Factory
M16 & M18 Socket Head Cap Screw
Factory-Direct Pricing · Global Quality
⚙️ Tired of high prices, long lead times, and inconsistent quality? Get ISO 9001 certified M16 socket head cap screw and M18 socket head cap screw at 30–40% lower cost — with full traceability, OEM support, and delivery in 12–25 days.
✅ 10+ years export · 30+ countries · 500+ happy B2B buyers
🏭 12,000 m² smart factory · Handan, China
⚠️ Still Struggling With These 5 Pain Points?
Overpaying by 30–50%
Distributor markups on M16 socket head cap screw and M18 socket head cap screw eat your margins. We’ve seen buyers pay $0.85/pc for a screw that costs $0.42 at factory gate.
8–14 Week Lead Times
European and US suppliers often quote 10–16 weeks. We ship 12–25 days from order to port, with real-time tracking.
Inconsistent Hardness & Fit
Mixed batches, wrong thread pitch, or failed tensile tests. Our 12.9 grade M18 socket head cap screw passes 100% Rockwell hardness check.
Compliance & Cert Gaps
Missing CE, RoHS, ISO 9001 or test reports can block your shipment. We provide full documentation package with every order.
Hidden Shipping & Tariff Costs
Ocean freight volatility and surprise duties. We offer DDP / Incoterms 2026 options, so you know the landed cost upfront.
👉 You don’t have to accept these trade-offs. Switch to a factory that treats you like a partner.
🔩 Why Boen Fasteners for M16 & M18 Socket Head Cap Screws?
We don’t just make screws — we engineer fastening reliability for your production line.
Factory-Direct Power
Eliminate 2–3 tiers of intermediaries. M16 socket head cap screw from $0.38/pc, M18 socket head cap screw from $0.55/pc (grade 12.9, QTY 10k).
100% Quality Assay
Every batch tested for tensile strength, hardness (HRC), yield point, and dimensional accuracy. ISO 9001 & CE certified.
High-Speed Delivery
12–25 days to major ports (LA, Rotterdam, Hamburg). Express air freight available for urgent orders in 5–7 days.
OEM / Custom Design
Need a special thread length, flange, or coating? We engineer to your print — lead time only +3–5 days for prototypes.
📊 Technical Specifications — M16 & M18 Socket Head Cap Screw
All data verified by third-party lab testing (SGS & BV reports available upon request).
| Parameter | M16 Socket Head Cap Screw | M18 Socket Head Cap Screw |
|---|---|---|
| Thread Diameter | M16 (16 mm) | M18 (18 mm) |
| Thread Pitch | 2.0 mm (coarse) / 1.5 mm (fine) | 2.5 mm (coarse) / 1.5 mm (fine) |
| Grade / Strength | 12.9 (1220 MPa) | 12.9 (1220 MPa) |
| Hardness (HRC) | 39 – 44 HRC | 39 – 44 HRC |
| Material Options | Alloy steel 40Cr, 42CrMo, 304SS, 316SS | Alloy steel 40Cr, 42CrMo, 304SS, 316SS |
| Surface Finish | Black oxide, zinc plating, HDG, Dacromet | Black oxide, zinc plating, HDG, Dacromet |
| Head Height (approx.) | 10 mm | 12 mm |
| Hex Key Size | 6 mm | 8 mm |
| Certifications | ISO 9001, CE, RoHS, Reach | ISO 9001, CE, RoHS, Reach |
📌 Note: Custom lengths from 20 mm to 300 mm available. Contact us for full engineering drawing support.
🏗️ Real-World Applications — Where M16 / M18 Socket Head Cap Screws Excel
Agricultural Machinery
Tractor linkages, harvester blade assemblies — M18 socket head cap screw withstands high vibration & torque.
Structural Steel & Construction
Bridge brackets, heavy equipment anchoring — M16 socket head cap screw grade 12.9 for critical joints.
Automotive & Truck Assembly
Engine mounts, chassis components — our M18 screws meet SAE J429 requirements.
Renewable Energy
Wind turbine tower flanges, solar tracker frames — corrosion-resistant coating options available.
💡 Case study: A German agricultural OEM switched to our M18 socket head cap screw and saved €127,000/year on fastener costs while improving torque consistency.
🤝 Trusted by Industry Leaders — 10+ Years of Export Excellence
+ 30 more
📸 Real client conversations — transparency is our policy.
“We switched to Boen for our M16 socket head cap screw supply. Lead time dropped from 12 weeks to 18 days, and we saved 34% on total cost. The batch traceability is world-class.”
— Lars V., Senior Procurement Manager, Denmark (Industrial Equipment)
❓ Frequently Asked Questions — M16 & M18 Socket Head Cap Screws
🔹 What is the minimum order quantity (MOQ) for M16 socket head cap screw?
Our standard MOQ is 2,000 pieces for stock sizes. For custom specs or high-strength alloy, MOQ may be 5,000 pieces. We also offer sample orders (50–200 pcs) for qualification at cost price.
🔹 Do you offer M18 socket head cap screw in stainless steel 316?
Yes. We supply M18 socket head cap screw in A2-70 (304) and A4-80 (316) stainless steel. Ideal for marine, chemical, and food-grade environments. Lead time: 15–20 days.
🔹 How do you ensure quality consistency for bulk orders?
We follow a 3-stage QA protocol: incoming material chemical analysis, in-process dimensional inspection (every 200 pcs), and final batch testing (tensile, hardness, salt spray). ISO 9001:2025 certified. Reports included.
🔹 What payment terms do you accept for international buyers?
30% deposit + 70% balance before shipment (T/T). For regular clients, we offer L/C at sight or net 30 after credit approval. PayPal/Wise also accepted for samples.
🔹 Can you provide custom packaging or private labeling?
Absolutely. We offer OEM packaging with your brand, barcode, and part number. Poly bags, small boxes, wooden crates, or bulk pallets — all customizable. No extra charge for label design.
🔹 How long does shipping take to the US or Europe?
Sea freight: 18–25 days to Los Angeles, 22–30 days to Rotterdam/Hamburg. Air freight: 5–7 days door-to-door. We handle all customs documentation. DDP available for hassle-free delivery.
🔹 Do you offer free samples for M16 / M18 socket head cap screws?
Yes, we provide up to 10 free samples for qualified B2B buyers. You only pay for shipping (express courier). Request samples via our contact form or WhatsApp — we’ll dispatch within 48 hours.
⭐ Real Reviews from Global Buyers
Procurement Lead, UK Construction
“We’ve been using M16 socket head cap screw from Boen for 18 months. The consistency of thread fit and hardness is outstanding. Zero rejects in the last 6 shipments. Highly recommend.”
★★★★★
Supply Chain Manager, Germany
“The M18 socket head cap screw grade 12.9 we ordered for our agricultural equipment line exceeded DIN standards. Boen’s team helped us with coating selection for corrosion resistance. Delivery was 3 weeks early.”
★★★★★
Operations Director, Mexico
“We switched from a local distributor to Boen for M16 and M18 socket head cap screws. Cost reduced by 41%, and the quality is actually better. The DDP shipping option saved us a lot of customs hassle.”
★★★★★
✍️ About the Author
David Fang — Senior Fastening Engineer & Export Manager
With 14 years in the industrial fastener industry, David has overseen over 1,200 B2B export shipments across 30+ countries. He specializes in high-strength bolting solutions for heavy equipment and structural applications. David leads the technical team at Handan Boen Fastener Manufacturing Co., Ltd.
🚀 Ready to Secure Your M16 & M18 Socket Head Cap Screw Supply?
Get factory-direct pricing + free samples + full compliance package.
⏳ Limited: Free sample kit for the first 20 inquiries this month.
📧 Email: shuan@fastenboen.com · mary@fastenboen.com · grace@fastenboen.com
🏢 Hanguang Industrial Park, Yongnian District, Handan City, Hebei, China · Daily 09:00 – 17:00
🔒 Your information is confidential. We respect your privacy.
