Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Thread Type | Full Thread |
| Head Style | Cylinder Head |
| Drive Type | Hex Socket |
| Surface Finish | Black Oxide |
| Standard Compliance | DIN 912 / ISO 4762 |
| Hardness | HRC 39-44 |
| Tensile Strength | 1220 MPa Minimum |
| Package Count | 100 Pieces per Box |
Anonymous
Apr 09, 2026
Rating: 5/5
Reliable fasteners
We use these in our manufacturing line. Consistent quality batch after batch. Highly recommend for industrial use.
Anonymous
Apr 01, 2026
Rating: 5/5
Excellent for high stress applications
Used these for a custom engine build. The tensile strength is consistent and they didn't strip under high torque.
Anonymous
Mar 21, 2026
Rating: 4/5
Good quality, slight packaging issue
The bolts themselves are top notch Grade 12.9. One box arrived slightly dented but the contents were secure.
Anonymous
Mar 19, 2026
Rating: 5/5
Great value for money
Compared to local hardware stores, the price here is much better for the same high strength specification.
Anonymous
Feb 22, 2026
Rating: 5/5
Perfect metric sizing
Needed specific M5 bolts for a CNC project. These fit perfectly and the black oxide finish looks professional.
Q: Are these screws made of stainless steel?
A: No, these are made of high-grade alloy steel with a black oxide finish for strength.
Q: Do you offer bulk discounts for orders over 50 boxes?
A: Yes, please contact our sales team directly for volume pricing on large orders.
Q: Is the thread pitch standard coarse for all sizes?
A: Yes, all sizes from M1.6 to M20 feature standard metric coarse thread pitch.
Q: Are these suitable for outdoor use?
A: Black oxide offers some corrosion resistance, but we recommend additional coating for harsh outdoor environments.
Q: What is the recommended torque for M10 size?
A: Torque varies based on lubrication. Please refer to standard ISO 898-1 torque tables for Grade 12.9.
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