Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Alloy Steel
Strength Class	12.9
Thread Diameters	M10, M12, M14, M16, M18, M24
Surface Coating	Black Oxide
Head Shape	Hexagonal
Drive Type	External Hex
Package Contents	Bolts, Nuts, Flat Washers
Tensile Strength	1220 MPa
Hardness Rating	39-44 HRC
Primary Use	Structural Assembly

5 reviews

Anonymous

Apr 13, 2026

Rating: 5/5

Excellent Strength

These bolts handled high torque without stripping. The 12.9 grade is legit.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect Fit

Threads were clean and matched my M16 specs perfectly. Nuts lock well.

Anonymous

Mar 14, 2026

Rating: 4/5

Good Value

Solid fasteners. The black oxide coating scratched slightly during shipping.

Anonymous

Mar 12, 2026

Rating: 5/5

Fast Delivery

Product arrived well packaged. Quality seems high for the price.

Anonymous

Feb 24, 2026

Rating: 5/5

Reliable Hardware

Used these for engine mounting. No loosening after vibration tests.

5 FAQ

Q: Are these stainless steel?

A: No, these are alloy steel with black oxide finish for strength.

Q: What is the thread pitch?

A: Standard coarse pitch is provided unless fine thread is specified in variations.

Q: Do you sell longer lengths?

A: Please check our store variations for specific length options available.

Q: Is there a bulk discount?

A: Yes, pricing tiers are applied automatically at checkout for quantity orders.

Q: What torque should I use?

A: Refer to standard ISO torque charts for Grade 12.9 M-series bolts.

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