Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Standard Compliance | DIN 74 |
| Drive Type | Internal Hex Socket |
| Point Style | Cup Point |
| Surface Finish | Black Oxide Coated |
| Available Sizes | M3, M4, M5, M6, M10, M12 |
| Hardness Rating | 44-52 HRC |
| Thread Type | Metric Coarse |
| Package Quantity | 100 Pieces per Box |
Anonymous
Apr 11, 2026
Rating: 4/5
Strong hold
Very hard steel, make sure you use the right Allen key to avoid rounding the socket. Otherwise, excellent product.
Anonymous
Apr 05, 2026
Rating: 5/5
Perfect for motor shafts
Used these to secure pulleys on a CNC router. The 12.9 grade holds tight without stripping. Exactly what I needed for high torque applications.
Anonymous
Feb 11, 2026
Rating: 5/5
Great value
Much cheaper than local hardware store for high tensile screws. Shipping was fast and packaging kept them organized.
Anonymous
Feb 06, 2026
Rating: 4/5
Good quality steel
Solid screws. One had a slightly uneven finish but functionally perfect. Would buy again for machinery repairs.
Anonymous
Feb 02, 2026
Rating: 5/5
Exact DIN spec
Needed genuine DIN 74 for import machinery repair. These fit perfectly and meet the hardness requirements specified in the manual.
Q: Are these screws made of stainless steel?
A: No, these are made of alloy steel graded 12.9 for high tensile strength, not stainless steel.
Q: What hex key size is required for the M6 screws?
A: Typically a 3mm hex key is required for M6 cup point set screws according to DIN 74 standards.
Q: Do you currently have the M8 size in stock?
A: Currently we only stock M3 through M6 and M10 through M12. M8 is out of stock at this time.
Q: Is there any corrosion protection on these?
A: Yes, they feature a black oxide coating which provides mild corrosion resistance and reduces glare.
Q: What is the thread pitch for the M10 size?
A: The M10 screws feature a standard metric coarse thread pitch of 1.5mm.
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