Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Surface Finish | Nickel Plated |
| Strength Grade | 12.9 |
| Head Style | Cylindrical Socket Head |
| Drive Type | Internal Hex |
| Thread Type | Metric Coarse |
| Size Range | M2 to M16 |
| Tensile Strength | 1220 MPa Minimum |
| Hardness | 39-44 HRC |
| Packaging | Protective Plastic Box |
Anonymous
Apr 18, 2026
Rating: 5/5
Very Strong
Grade 12.9 is no joke. These hold up under high tension without stripping. Highly recommend for serious projects.
Anonymous
Apr 16, 2026
Rating: 5/5
Perfect Fit
Ordered M6 size. They fit perfectly into my tapped holes. No issues with alignment or tightening.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable Supplier
Second time ordering. Consistent quality and fast shipping. The packaging protects the heads well.
Anonymous
Mar 10, 2026
Rating: 4/5
Good but pricey
Quality is undeniable, but they are a bit more expensive than zinc plated options. Worth it for corrosion resistance though.
Anonymous
Feb 11, 2026
Rating: 5/5
High Quality Fasteners
These screws are exactly what I needed for my machinery assembly. The nickel plating is uniform and the threads are precise.
Q: Are these suitable for outdoor use?
A: Yes, the nickel plating provides excellent corrosion resistance for outdoor environments.
Q: Do you sell matching nuts?
A: Yes, please search our store for Grade 12.9 hex nuts in the corresponding size.
Q: What Allen key size is needed for M8?
A: Typically a 6mm hex key is required for M8 socket head cap screws.
Q: Is there a certificate of conformity included?
A: Bulk orders typically include a material test report. Please contact us for specific documentation needs.
Q: Can these be welded?
A: Welding high strength steel like Grade 12.9 is not recommended as it affects the heat treatment and strength.
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