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Durable Socket Head Cap Screws from China Suppliers | Precision Allen Bolts | Factory Direct Hex Socket Screws
Product Overview
| Product Name | Socket Head Cap Screw / Allen Bolt / Hex Socket Screw |
| Head Type | Cylindrical Head with Hex Socket (Allen) |
| Drive Type | Internal Hex (Allen Key) |
| Thread Type | Fully or partially threaded (Metric / Inch) |
| Standards | DIN 912, ISO 4762, ANSI B18.3 or customized |
| Material | Carbon Steel (Grade 8.8, 10.9, 12.9) Alloy Steel Stainless Steel (SS304 / SS316) |
| Surface Finish | Black Oxide Zinc Plated Hot Dip Galvanized Dacromet / Ruspert |
| Size Range | Metric: M3 – M30 Inch: 1/8" – 1-1/4" Length: 6mm – 200mm or as required |
Product Features
High-strength design, ideal for high-torque applications
Cylindrical head allows installation in tight spaces
Internal hex socket provides reliable torque transmission
Available in both coarse and fine threads
Uniform threading and excellent surface finish
Meets international standards for quality and performance
Applications
Machinery and mechanical equipment
Automotive and heavy vehicles
Industrial assembly and metal structures
Aerospace and precision instruments
Robotics and automation systems
Tooling and fixture construction
Packaging & Delivery
| Packaging | Bulk cartons, plastic bags, or small boxes. Custom packaging available with logo or barcode. |
| Lead Time | 7–25 days depending on order size and type. |
| Shipping Port | Tianjin, China. |
Why Choose Us?
- Expert manufacturer with over 10 years in fastener industry
- Wide range of socket screws in standard and non-standard sizes
- ISO 9001-certified quality control
- Exported to over 30 countries worldwide
- Competitive pricing, flexible MOQ, and on-time delivery
Frequently Asked Questions
What is the difference between a Socket Head Cap Screw and an Allen Bolt?
They refer to the same type of fastener. "Socket Head Cap Screw" is the formal technical term, while "Allen Bolt" or "Hex Socket Screw" is the common commercial name derived from the hexagonal drive type requiring an Allen key.
What materials are available for your Hex Socket Screws?
We manufacture screws using Carbon Steel (Grade 8.8, 10.9, and high-tensile 12.9), Alloy Steel, and Stainless Steel (SS304 and SS316) to meet different strength and corrosion resistance demands.
Do you support custom sizes and custom packaging?
Yes, we offer custom length, thread pitch, and surface treatments according to your drawings. We also provide custom packaging solutions including small boxes with custom logo labels and barcodes.
Which international standards do your fasteners comply with?
Our socket head cap screws are fully compliant with DIN 912, ISO 4762, and ANSI B18.3 standards, ensuring precise dimensions and global compatibility.
What is the average lead time for bulk orders?
Our typical lead time ranges from 7 to 25 days, depending on the specific order specifications, quantities, and our current production schedule.