A
Anonymous
Apr 11, 2026
Rating: 5/5
Industrial Grade
We use these in our manufacturing line. They meet all our structural requirements consistently.
Description
Grade 12.9 High-Strength Socket Head Cap Screws M18 M20 M22 M24 M27 M30 M36 M48
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Head Style | Cylindrical Head Cap |
| Drive Type | Hex Socket (Allen) |
| Thread Type | Metric Coarse |
| Surface Finish | Black Oxide |
| Standard Compliance | DIN 912 / ISO 4762 |
| Available Sizes | M18, M20, M22, M24, M27, M30, M36, M48 |
| Hardness | 39-44 HRC |
| Packaging | Industrial Box |
5 reviews
A
Anonymous
Mar 27, 2026
Rating: 4/5
Good Quality
The bolts themselves are excellent quality. Shipping took a bit longer than expected but the product is worth it.
A
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect Fit
Threads are clean and precise. No issues fitting them into standard metric tapped holes.
A
Anonymous
Jan 26, 2026
Rating: 5/5
Great Value
Competitive pricing for Grade 12.9 fasteners. Will definitely order again for future projects.
A
Anonymous
Jan 25, 2026
Rating: 5/5
Strong and Reliable
Used these for heavy equipment repair. The tensile strength is exactly as specified and they held up under high torque.
5 FAQ
Q: What is the recommended torque for the M30 size?
A: Torque specifications depend on lubrication and application. Please consult a standard torque chart for Grade 12.9.
Q: Is there a discount for purchasing over 100 units?
A: Yes, we offer tiered pricing for bulk purchases. Please contact our sales team for a quote.
Q: Are these screws made of stainless steel?
A: No, these are made of alloy steel with a black oxide finish for high strength.
Q: Do you provide material test reports for these screws?
A: Yes, Mill Test Reports are available upon request for bulk orders.
Q: What is the thread pitch for the M24 bolt?
A: The standard coarse thread pitch for M24 is 3.0mm.
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