1936 Series Socket Head Cap Screws & 1960 Series Screw | Factory
1936 Series Socket Head Cap Screws & 1960 Series Screw | Factory-Direct Precision
Stop overpaying for inconsistent quality. Get ISO-certified socket head cap screws engineered for high-stress assemblies — delivered from our factory to your dock in 10-15 days.
The Real Cost of Cheap Fasteners
Inflated prices from middlemen
Many distributors add 30-50% markup. Our 1936 series socket head cap screws ship directly from our factory — no layers, no hidden fees.
Inconsistent quality & rejected batches
Poor heat treatment and loose tolerances cause fastener failure. Our 1960 series cap screw meets ASTM A574 & ISO 898-1.
Long lead times that stall production
Typical import lead times are 30-45 days. We deliver 10-15 days from order confirmation for standard sizes.
Shipping costs eating your margin
We consolidate orders and negotiate freight. Combined shipping for socket head cap screws and other fasteners reduces per-unit logistics cost by up to 18%.
Why Buyers Choose Our 1936 & 1960 Series Cap Screws
Factory-Direct Value
No distributor margin. Our 1936 series socket head cap screws are priced at 10-25% below market while maintaining Class 12.9 strength.
Precision & Certification
Every 1960 series cap screw is 100% dimension-checked. Certificates: ISO 9001, CE, RoHS — uploaded to your portal upon shipment.
High-Speed Delivery
Stock program for popular M6-M20 sizes. 8-12 days for standard orders, 15-20 days for custom length & coating.
OEM/ODM Flexibility
Need non-standard thread length, reduced head diameter, or special coating? Our engineering team can modify socket head cap screws to your print.
Technical Specifications – 1936 & 1960 Series
All data crawled for engineering comparison & procurement filtering
| Parameter | 1936 Series Socket Head Cap Screw | 1960 Series Cap Screw |
|---|---|---|
| Material | Alloy steel 40Cr / 42CrMo4 / AISI 4137 | Carbon steel 45# / 10B21 / Stainless steel 304/316 |
| Strength Grade | 12.9 (HRC 39-44) | 8.8 / 10.9 / 12.9 |
| Thread Size Range | M3 – M36 (UNC/UNF available) | M4 – M24 (fine thread optional) |
| Surface Finish | Black oxide, zinc plating, phosphate | Zinc-nickel, hot-dip galvanized, Dacromet |
| Length Tolerance | ±0.3mm (standard) / ±0.1mm (precision) | ±0.5mm |
| Applicable Standards | DIN 912, ISO 4762, ASME B18.3 | DIN 931, ISO 4014, GB/T 5782 |
📌 Full test reports available upon request. Custom thread & length combinations are supported.
Real-World Applications
Agricultural Machinery
High-vibration assemblies use 1936 series socket head cap screws for anti-loosening performance. A Nebraska tractor manufacturer reduced field failure by 34% after switching to our 12.9-grade screws.
Construction Fixings
Our 1960 series cap screw is used in structural steel connections. Zinc-nickel coating provides 720+ hours salt spray resistance — ideal for outdoor & bridge projects.
Automotive Sub-Assemblies
Engine block mounting bolts require precise thread fit. Socket head cap screws from our 1936 series passed 100% torque-to-yield validation for a Tier 1 supplier.
Trusted by Global Buyers
Our factory in Handan produces 20 million+ fasteners annually. We serve automotive, construction, and energy clients across Europe, America, and Southeast Asia.
Frequently Asked Questions
Q: What is the difference between 1936 series socket head cap screws and 1960 series cap screws?
A: The 1936 series socket head cap screws are designed for high-strength applications (Grade 12.9) with a hex socket drive, while the 1960 series cap screw is a general-purpose hex head bolt available in Grades 8.8/10.9/12.9. Choose 1936 for compact, high-torque assemblies; choose 1960 for standard flanged connections.
Q: Do you offer custom lengths or non-standard thread sizes?
A: Yes. We support OEM/ODM orders for both series. Minimum order quantity for custom socket head cap screws is 5000 pieces. Typical lead time: 15-20 working days.
Q: What certifications do your fasteners carry?
A: Our factory is ISO 9001:2015 certified. Products meet CE, RoHS, and REACH requirements. We can provide mill test certificates and batch inspection reports for each shipment.
Q: How do you handle shipping and logistics?
A: We ship via sea (FOB Tianjin / Shanghai) or air freight. For orders above $5,000, we offer free consolidation and provide real-time tracking. Delivery to US West Coast typically takes 10-15 days by sea.
Q: Can I get a sample before placing bulk order?
A: Absolutely. We offer free samples for standard sizes (you pay shipping). Request through our contact form or email us directly.
What Our Clients Say
Purchasing Manager, Midwest Machinery (US)
“We switched to Boen’s 1936 series socket head cap screws and reduced our fastener cost by 15% without sacrificing quality. The 12.9 grade holds up perfectly in our tractor assemblies.”
Supply Chain Director, EdilTech (Italy)
“The 1960 series cap screw with zinc-nickel coating passed our 600-hour salt spray test. Fast delivery and excellent documentation.”
Operations Manager, Precision Auto Parts (Canada)
“Reliable supplier for socket head cap screws. We’ve placed 7 repeat orders in 2025 — zero defects, always on time.”
Meet the Author
Zhang Wei — Senior Fastener Engineer
With 12 years at Handan Boen Fastener, Zhang oversees quality control for all 1936 series socket head cap screws and 1960 series cap screw production lines. He has helped 80+ international clients optimize their fastener specifications for cost and performance.
Ready to Secure Your Supply Chain?
Get factory pricing on 1936 series socket head cap screws and 1960 series cap screw — with free samples, fast lead times, and full certification.
📧 shuan@fastenboen.com | mary@fastenboen.com | grace@fastenboen.com | stella@fastenboen.com
🏭 Hanguang Industrial Park, Yongnian District, Handan City, Hebei Province, China
⏰ Daily 09 am – 05 pm (UTC+8)
