Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Alloy Steel
Strength Grade	12.9
Finish	Black Nickel Plated
Head Style	Cylindrical Cap
Drive Type	Hex Socket
Thread Standard	ISO Metric
Available Sizes	M2.5 to M8
Tensile Strength	1220 MPa
Package Quantity	100 Pieces
Standard Compliance	ISO 4762

5 reviews

Anonymous

Apr 19, 2026

Rating: 5/5

Strong and Durable

Grade 12.9 is no joke. Very high tensile strength. Will buy again.

Anonymous

Mar 03, 2026

Rating: 4/5

Good but strict torque

Great bolts but make sure you use a torque wrench. Very hard steel.

Anonymous

Feb 23, 2026

Rating: 5/5

Fast Delivery

Arrived earlier than expected. Packaging was secure.

Anonymous

Feb 08, 2026

Rating: 5/5

Perfect Fit

Threads are clean and precise. No cross-threading issues.

Anonymous

Jan 30, 2026

Rating: 5/5

Excellent Quality

These bolts are exactly what I needed for my CNC project. The black nickel finish looks professional.

5 FAQ

Q: What Allen key size for M5?

A: A 4mm hex key is required for M5 size.

Q: Do you sell matching nuts?

A: Yes, search for Grade 12.9 nuts in our store.

Q: Can I mix sizes in one pack?

A: No, packs are single size. Select size from dropdown.

Q: Is this suitable for outdoor use?

A: Black nickel offers some protection, but stainless is better for harsh environments.

Q: What is the hardness rating?

A: Typically 39-44 HRC.

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