





The DIN912 Hexagon Socket Head Cap Screw (Allen Bolt) is a premium fastener with a cylindrical cup head and internal hex drive. Grade 12.9 provides exceptional tensile strength for critical applications requiring high torque and vibration resistance.
Ideal for automotive, machinery, construction, and precision equipment where flush, secure fastening is essential.
High Torque Performance: Internal hex socket allows precise tightening with Allen wrench.
Ultimate Strength: Grade 12.9 alloy steel delivers superior load-bearing and fatigue resistance.
Flush Design: Cup head sits flat for clean, low-profile installations in tight spaces.
| Property | Specification |
| Product Name | Hexagon Socket Head Cap Screw (Allen Bolt) |
| Standard | DIN912 |
| Material | Carbon Steel / Stainless Steel |
| Grade | 4.8, 8.8, 10.9, 12.9 |
| Size Range | M6 - M100 (Customizable) |
| Surface Treatment | Zinc Plated, Black Oxide, HDG |
| Application | Oil & Gas, Structural Steel, Metal Building, Wind Energy, Mechanical Machine |
| Package | Cartons + Pallets |
Factory Direct Price | Fast Delivery | OEM Service
Email: admin@changhua-electrical.com | WhatsApp: +86 181 3296 8158
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![]() Advanced Cold Heading Precision manufacturing. | ![]() Optical Sorting 0-PPM defects. | ![]() Lab Testing Tensile & Salt Spray. |
![]() Automotive High Torque Assemblies | ![]() Machinery Vibration Resistant | ![]() Construction Structural Connections |
Q: Can I get free samples?
Yes! We provide free samples for standard Allen bolts. You only need to cover the shipping cost.
Q: What grades and sizes do you support?
DIN912 compliant, grades up to 12.9, M6-M100. Custom sizes available.
Q: What certifications do you have?
We are ISO9001:2015 Certified. Every shipment comes with a Factory Quality Inspection Report.
Q: What is your delivery time?
Stock items: 3-7 days. Mass production: 20-30 days.
Q: Can you produce according to drawings?
Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.
Q: What are your payment terms?
We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.
Get in touch for more information, pricing, or custom requirements.