Stainless Steel DIN 912 Allen Bolts Gr8.8/10.9/12.9 - China Suppliers & Factory for Quality Fasteners
| Product Name | Hexagon socket head cap DIN912 10.9 Grade Allen Bolt 12.9 Grade Hex Allen Key Bolt |
| Material | stainless steel |
| Color | nickel white |
| Standard | DIN GB ISO JIS BA ANSI |
| Grade | SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8 8.8 10.9 12.9 |
| Brade | Rock |
| Thread | coarse, fine |
| Used | building industry machinery |

Grade 8.8/10.9 High strength DIN 912 Hexagon Socket Head Cap Screw

Grade12.9 DIN 912 SCREW
Hexagon socket head screws and countersunk head screws are very similar. When the nail head penetrates into the machine, its connection strength is very high, so the corresponding hexagon socket wrench must be used during Install and remove screws. Generally, it is widely used on various machine tools and its accessories.
Hexagon bolts are classified into ordinary and high strength according to their strength. Ordinary hexagon socket bolts are grade 4.8, high strength hexagon socket bolts are grade 8.8 or higher, including grades 10.9 and 12.9. Hexagon bolts of grade 12.9 generally refer to knurled, oil-colored black hex socket head screws.
Hexagon screws are widely used, ranging from small hardware to small electronics and electrical products. Mechanical equipment products, from cars, ships, aircraft cannons. In short, hex screws are mainly used in the fields of electronics, electrical appliances, electrical, electricity, chemicals, water conservancy, machinery and equipment, furniture, and other fields.
Frequently Asked Questions (FAQ)
What are the standard specifications of the DIN 912 Allen Bolt?
The DIN 912 standard specifies the characteristics of hexagon socket head cap screws with metric threads, ranging from coarse to fine threads, commonly used in high-precision machinery applications.
What steel grades are available for these hex socket head screws?
We offer a wide range of material grades, including stainless steel SUS201, SUS304, and SUS316 (A2-70, A2-80, A4-80), as well as carbon steel and alloy steel in grades 4.8, 6.8, 8.8, 10.9, and high-tensile 12.9.
What is the difference between Grade 10.9 and Grade 12.9 Allen Bolts?
Grade 12.9 bolts offer higher tensile strength (approx. 1220 MPa) compared to Grade 10.9 (approx. 1040 MPa). Grade 12.9 screws are typically finished with a knurled head and an oil-blackened surface for heavy-duty industrial fastening.
Which industries commonly utilize DIN 912 Allen Key Bolts?
These bolts are widely used in the building industry, machine tools, automotive manufacturing, aerospace components, marine environments, chemical equipment, and electronic hardware.
How should hexagon socket head cap screws be installed and removed?
Due to their high connection strength and deep socket head, they must be installed and removed using a matching hexagon socket wrench (Allen key) to prevent stripping and ensure correct torque application.















