Attributes

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

5 reviews

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.

5 FAQ

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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