Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Alloy Steel
Strength Grade	12.9
Thread Type	Full Thread
Head Style	Cylinder Head
Drive Type	Hex Socket
Surface Finish	Black Oxide
Standard Compliance	DIN 912 / ISO 4762
Hardness	HRC 39-44
Tensile Strength	1220 MPa Minimum
Package Count	100 Pieces per Box

5 reviews

Anonymous

Apr 09, 2026

Rating: 5/5

Reliable fasteners

We use these in our manufacturing line. Consistent quality batch after batch. Highly recommend for industrial use.

Anonymous

Apr 01, 2026

Rating: 5/5

Excellent for high stress applications

Used these for a custom engine build. The tensile strength is consistent and they didn't strip under high torque.

Anonymous

Mar 21, 2026

Rating: 4/5

Good quality, slight packaging issue

The bolts themselves are top notch Grade 12.9. One box arrived slightly dented but the contents were secure.

Anonymous

Mar 19, 2026

Rating: 5/5

Great value for money

Compared to local hardware stores, the price here is much better for the same high strength specification.

Anonymous

Feb 22, 2026

Rating: 5/5

Perfect metric sizing

Needed specific M5 bolts for a CNC project. These fit perfectly and the black oxide finish looks professional.

5 FAQ

Q: Are these screws made of stainless steel?

A: No, these are made of high-grade alloy steel with a black oxide finish for strength.

Q: Do you offer bulk discounts for orders over 50 boxes?

A: Yes, please contact our sales team directly for volume pricing on large orders.

Q: Is the thread pitch standard coarse for all sizes?

A: Yes, all sizes from M1.6 to M20 feature standard metric coarse thread pitch.

Q: Are these suitable for outdoor use?

A: Black oxide offers some corrosion resistance, but we recommend additional coating for harsh outdoor environments.

Q: What is the recommended torque for M10 size?

A: Torque varies based on lubrication. Please refer to standard ISO 898-1 torque tables for Grade 12.9.

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