Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Alloy Steel
Strength Grade	12.9
Thread Style	Full Thread
Head Type	Hex Socket Cap
Drive Type	Internal Hex
Surface Finish	Black Oxide
Measurement System	Metric
Tensile Strength	1220 MPa Min
Hardness	39-44 HRC
Compliance Standard	ISO 4762

5 reviews

Anonymous

Apr 11, 2026

Rating: 4/5

Good value bulk pack

Most were perfect, one had a slight burr but usable. Overall good value.

Anonymous

Apr 08, 2026

Rating: 5/5

High quality steel

Very strong bolts. Exactly what I needed for high tension applications.

Anonymous

Mar 26, 2026

Rating: 5/5

Consistent sizing

Measured with calipers, all within tolerance. Will reorder for future projects.

Anonymous

Feb 13, 2026

Rating: 5/5

Perfect for machinery repair

Used these for a CNC repair. Threads are clean and head didn't strip under torque.

Anonymous

Jan 29, 2026

Rating: 5/5

Fast shipping

Needed these urgently for a project. Arrived on time and well packaged.

5 FAQ

Q: Are they corrosion resistant for outdoor use?

A: They have a black oxide finish which offers mild protection. Use oil for outdoor use.

Q: Is the head height standard ISO dimensions?

A: Yes, these comply with ISO 4762 standard head dimensions.

Q: What is the recommended torque specification?

A: Torque varies by size and lubrication. Please refer to a Grade 12.9 torque chart.

Q: Are these metric or imperial sizes?

A: These are metric sizes ranging from M1.6 to M20.

Q: Do you sell matching nuts for these bolts?

A: Yes, we sell Grade 12.9 matching nuts separately in our store.

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