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Home / Connectors and Fasteners / High Strength Hex Nuts Grade 8 Grade 10 GB6170 Grade 12.9 Screw Caps M6 M8 M10 M12 M16 M20 M24
Connectors and Fasteners

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Carbon Steel / Alloy Steel
Strength Grade Grade 8, Grade 10, Grade 12.9
Thread Size M6, M8, M10, M12, M16, M20, M24
Thread Type Metric Coarse Pitch
Surface Finish Zinc Plated, Black Oxide
Standard GB6170, DIN 934
Hardness HRC 32-38 (Grade 10)
Proof Load High Tensile Strength
Package Weight 1kg, 5kg, 10kg Options
Country of Origin China

5 reviews

A

Anonymous

Apr 12, 2026

Rating: 5/5

Industrial Grade

We use these in our factory assembly line. Consistent quality across bulk orders. Highly recommended.

A

Anonymous

Apr 08, 2026

Rating: 5/5

Fast Shipping

Needed these for an emergency machinery repair. Arrived quickly and held up under high torque.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Exact Fit

Ordered M12 Grade 10 nuts. They fit snugly without being too tight. Great quality for the price.

A

Anonymous

Mar 01, 2026

Rating: 4/5

Good Quality

Overall satisfied. One nut in the batch had a slight burr, but the rest were perfect. Would buy again.

A

Anonymous

Feb 20, 2026

Rating: 5/5

Solid Hardware

Used these for an automotive restoration project. The threads were clean and matched my bolts perfectly.

5 FAQ

Q: Do you offer stainless steel versions?

A: This specific listing is for high-strength carbon steel. Please check our store for stainless options.

Q: Can these be used outdoors?

A: Yes, the zinc plated finish offers basic corrosion resistance for outdoor use.

Q: What is the thread pitch for M10?

A: The standard coarse thread pitch for M10 is 1.5mm.

Q: Is a certificate of conformity available?

A: Yes, mill certificates can be provided upon request for bulk orders.

Q: Are these nuts sold individually or in packs?

A: These are sold in packs based on weight or quantity selected in the variant options.

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