Hex Head Bolts (DIN 933 / ISO 4017)
Professional grade hex head bolts manufactured to DIN 933 (fully threaded) and ISO 4017 standards. Suitable for construction, machinery, automotive, and structural applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | DIN 933, ISO 4017 |
| Thread Type | Full Thread (Metric Coarse) |
| Size Range | M6 – M48 |
| Length Range | 16mm – 300mm |
| Material | Carbon Steel (Grade 4.8, 8.8, 10.9, 12.9) |
| Stainless Steel | SS304 (A2-70), SS316 (A4-80) |
| Surface Finish | Zinc Plated (Clear/Black/Color), Hot-Dip Galvanized, Black Oxide, Phosphate |
| Tensile Strength | 400-1220 MPa (depending on grade) |
| Yield Strength | 240-1100 MPa |
| Hardness | HRC 22-40 (Grade 8.8-12.9) |
| Temperature Range | -50°C to +300°C (carbon steel) |
| MOQ | 1,000 pcs (standard), 5,000 pcs (custom) |
| Lead Time | 7-15 days (standard), 20-30 days (custom) |
| Packaging | Bulk in cartons / Wooden pallets / Custom labeling |
Available Sizes
M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M48
Applications
- Structural steel connections
- Machinery assembly
- Automotive manufacturing
- Bridge construction
- Power transmission towers
- Heavy equipment
Certifications
ISO 9001:2015 certified manufacturing. Material test certificates (MTC) available per EN 10204 3.1/3.2. RoHS and REACH compliant.
Frequently Asked Questions
What is the difference between DIN 933 and DIN 931?
Both are hex head bolts with identical heads and threads. DIN 933 is fully threaded along the whole shank, while DIN 931 is partially threaded with a plain shank portion. Choose DIN 933 when you need thread right up to the head or short lengths; DIN 931 where a plain shank gives better shear and fatigue performance.
What sizes are available?
Available sizes range from M6 – M48. Contact us with your required sizes and quantities for a quick quote.
What is the MOQ and lead time?
The MOQ is 1,000 pcs (standard), 5,000 pcs (custom). Lead time is 7-15 days (standard), 20-30 days (custom). Mixed-size containers and larger orders are negotiable — send us your requirement for a quick quote.
Do you provide material certificates?
Yes. Material test certificates per EN 10204 3.1 are available on request, and our manufacturing is ISO 9001:2015 certified. RoHS and REACH compliance documentation can also be provided.
