Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Thread Type | Metric Coarse |
| Head Style | Socket Cap |
| Drive Type | Hex Socket (Allen) |
| Surface Finish | Black Oxide |
| Standard Compliance | DIN 912 / ISO 4762 |
| Thread Coverage | Full Thread |
| Hardness | HRC 39-44 |
| Package Quantity | 100 Pieces per Box |
Anonymous
Apr 08, 2026
Rating: 5/5
Exact Specifications
Measured the diameter and pitch with calipers. Everything matches standard metric specs exactly.
Anonymous
Apr 01, 2026
Rating: 5/5
Fast Shipping
Needed these for a quick repair job. Arrived sooner than expected and quality is top notch.
Anonymous
Mar 07, 2026
Rating: 4/5
Good Value
Threads are clean and sizing is accurate. Packaging was a bit loose but the bolts themselves are excellent.
Anonymous
Feb 25, 2026
Rating: 5/5
Perfect for Machinery
High quality steel and the threads are cut very cleanly. Used these for a CNC machine assembly and they fit perfectly.
Anonymous
Feb 21, 2026
Rating: 5/5
Strong and Reliable
Used for automotive engine components. The 12.9 grade provides the tensile strength I needed without stripping.
Q: Are these suitable for outdoor use without coating?
A: The black oxide finish offers limited corrosion resistance. We recommend additional coating for harsh outdoor environments.
Q: What Allen key size is required for the M6 bolts?
A: For M6 socket cap screws, you will need a 5mm hex key.
Q: Do you offer bulk discounts for large orders?
A: Yes, please contact our sales team directly for pricing on bulk quantities over 10 boxes.
Q: Are these imperial or metric sizes?
A: All sizes listed (M2-M24) are standard metric measurements.
Q: What is the hardness rating for these bolts?
A: These Grade 12.9 bolts typically have a hardness between HRC 39 and 44.
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