A
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for machinery
High quality steel, didn't strip during installation. Holds tension very well.
Description
Grade 12.9 Headless Set Screws with Cup Point Hex Socket Grub Screws M2 M3 M4 M5 M6 M8
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Drive Style | Hex Socket |
| Point Type | Cup Point |
| Thread Size | M2, M3, M4, M5, M6, M8 |
| Surface Finish | Black Oxide |
| Hardness | 52-60 HRC |
| Standard | DIN 916 |
| Package Quantity | 100 Pieces |
| Head Type | Headless (Grub) |
5 reviews
A
Anonymous
Feb 14, 2026
Rating: 4/5
Good value
One size ran out fast, but good quality overall. Would buy again.
A
Anonymous
Feb 07, 2026
Rating: 5/5
Great assortment
Had the right size for my project. Good variety in the pack.
A
Anonymous
Jan 30, 2026
Rating: 5/5
Fast shipping
Arrived well packaged and protected from rust. Excellent service.
A
Anonymous
Jan 30, 2026
Rating: 5/5
Strong hold
Grade 12.9 is no joke, very strong. Ideal for high vibration areas.
5 FAQ
Q: What hex key size is needed for M5?
A: An M5 hex socket set screw typically requires a 2.5mm hex key.
Q: Can I get a special invoice for this?
A: Yes, this item is eligible for Special Invoice and Repeat Purchase Bonus.
Q: Do you offer bulk pricing?
A: Yes, please contact our support team for bulk order discounts.
Q: Is this material stainless steel?
A: No, this is alloy steel with a black oxide finish for strength.
Q: Are these metric or imperial threads?
A: These are metric threads, available in sizes M2 through M8.
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