


DIN912 hex socket head cap bolts are commonly used in machinery, equipment, molds, industrial frames, automotive repair, and construction assembly. The cylindrical head and internal hex drive allow stable tightening with a hex key, making the bolt practical for recessed holes, narrow assembly positions, and applications where an external hex head would take too much space.

| Item | Specification |
|---|---|
| Brand | Hotop Fasteners |
| Product Type | Hex Socket Head Cap Bolt / Allen Bolt |
| Standards | DIN, GB, ISO, JIS, BA, ANSI |
| Place of Origin | Handan, Hebei, China |
| Material | Steel, Carbon Steel, Stainless Steel |
| Steel Strength Grades | 4.8, 6.8, 8.8, 10.9, 12.9 |
| Surface Treatment | Black |
| Color / Finish Option | Zinc White / Plain |
| Model | DIN912 |
| Size Range | M3-M52 |
| Bolt Length Options | 20 mm, 30 mm, 50 mm, 60 mm, 65 mm, 70 mm, 80 mm, 90 mm, 150 mm, and additional lengths |
| Thread Type | Coarse, Fine |
| Application | Building, Industrial, Machinery |
| Certificate | ISO9001:2015 |
| Sample | Available |
| Customization | Custom logo, custom packaging, graphic customization |
| Packing Details | Box or Bag |
Hotop Fasteners DIN912 hex socket head cap bolts are suitable for fastening applications where strong torque, compact head size, and stable mechanical performance are required. The Allen socket design makes installation convenient in limited spaces and helps create a clean finished appearance after assembly.
Common application areas include:
For machinery and mold applications, 10.9 and 12.9 grade socket head cap bolts are often selected for their high strength and stable clamping performance. For corrosion-resistant projects, stainless steel options such as SUS304, SUS316, A2-70, A2-80, and A4-80 can be selected according to the working environment.
| Matching Fastener | Function |
|---|---|
| Flat Washers | Help distribute load and protect the contact surface |
| Spring Washers | Help improve anti-loosening performance |
| Lock Washers | Suitable for vibration-prone machinery and equipment |
| Hex Nuts | Used when the bolt passes through the connected parts |
| Nylon Lock Nuts | Help reduce loosening in dynamic assemblies |
| Flange Nuts | Provide wider bearing surface and easier installation |
| Threaded Rods | Suitable for extended or customized fastening systems |
| Hex Bolts | Useful for matching equipment, machinery, and structural fastening projects |
The product packing details are shown as box or bag. The selling unit is a single item, with a single package size of 40 x 30 x 14 cm and a single gross weight of 25.0 kg.
Available packing support includes:
Samples are available for customers who need to check size, grade, surface finish, thread quality, and application suitability before placing bulk orders.

Q1: What product is this?
A1: This product is a DIN912 hex socket head cap bolt, also known as a hex Allen key bolt or socket head cap screw.
Q2: What material options are available?
A2: The page shows steel, carbon steel, and stainless steel material options.
Q3: What are the main visible grades for this product?
A3: The main visible grades are 10.9 and 12.9.
Q4: What other grades are listed?
A4: The page also lists SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8, 6.8, 8.8, 10.9, and 12.9.
Q5: What standard does this product follow?
A5: The main standard shown is DIN. The detail information also lists DIN, GB, ISO, JIS, BA, and ANSI.
Q6: What surface treatment is shown?
A6: The surface treatment shown is Black. The page also shows a color / finish option as Zinc White / Plain.
Q7: What size range is available?
A7: The size range is M3-M52.
Q8: What thread options are shown?
A8: Visible thread options include M3, M4, M5, M6, M8, M10, M12, M14, and M16, with additional sizes available.
Q9: What bolt lengths are shown?
A9: Visible length options include 20 mm, 30 mm, 50 mm, 60 mm, 65 mm, 70 mm, 80 mm, 90 mm, and 150 mm, with additional lengths available.
Q10: What applications are these bolts suitable for?
A10: They are suitable for building, industrial, and machinery applications, including equipment assembly, mold fixing, mechanical fastening, and construction hardware.
Q11: What is the MOQ?
A11: The MOQ is 10,000 pieces.
Q12: Can the product be customized?
A12: Yes. Hotop Fasteners supports custom logo, custom packaging, and graphic customization for bulk orders.
Q13: What packing method is available?
A13: Packing details are shown as box or bag.
Q14: Where is Hotop Fasteners located?
A14: Hotop Fasteners supplies these products from Handan, Hebei, China.
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