Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Alloy Steel 40Cr
Strength Grade	12.9
Surface Finish	Black Oxide Coated
Thread Standard	ISO Metric Coarse
Head Style	Socket Head Cap
Drive Type	Hexagonal Socket
Hardness	39-44 HRC
Tensile Strength	1220 MPa Minimum
Yield Strength	1100 MPa Minimum
Compliance	DIN 912 / ISO 4762

5 reviews

Anonymous

Apr 19, 2026

Rating: 5/5

Accurate Sizing

Ordered M8 and M10 sizes. Threads are clean and match my taps perfectly. No issues with fitment.

Anonymous

Apr 07, 2026

Rating: 5/5

Strong and Reliable

Grade 12.9 is no joke. These hold up much better than standard hardware store bolts. Highly recommend for high-stress applications.

Anonymous

Mar 24, 2026

Rating: 5/5

Perfect for CNC Machinery

These screws are exactly what I needed for my CNC router assembly. The hardness is consistent and they haven't stripped under high torque.

Anonymous

Mar 23, 2026

Rating: 5/5

Fast Shipping

Product arrived well packaged in a sturdy box. No rust or damage. Will order again for future projects.

Anonymous

Feb 01, 2026

Rating: 5/5

Great Quality Fasteners

Used these for an automotive repair project. The black oxide finish looks professional and provides decent corrosion resistance.

5 FAQ

Q: Are these suitable for outdoor use?

A: Black oxide offers mild corrosion resistance. For harsh outdoor environments, we recommend applying additional lubrication or coating.

Q: Can I get a material certification?

A: Yes, mill certificates are available upon request for bulk orders. Please contact us before purchasing.

Q: What Allen key size fits the M6 head?

A: For M6 socket head cap screws, a 5mm Allen key is typically required according to DIN 912 standards.

Q: Do you stock imperial sizes?

A: This listing is for metric sizes only. Please check our other listings for UNC or UNF imperial options.

Q: What torque settings should I use for M10 screws?

A: Torque values depend on lubrication and application. Please refer to a standard ISO 898-1 torque chart for Grade 12.9 fasteners.

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