Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Carbon Steel
Surface Finish	Black Zinc Plated
Thread Type	Metric Coarse
Strength Grade	Grade 8 / Class 10
Compliance Standard	GB/T 6184
Locking Mechanism	All-Metal Deformed Thread
Operating Temperature	-50°C to +300°C
Package Quantity	100 Pieces
Net Weight	1.5 kg
Country of Origin	China

5 reviews

Anonymous

Apr 07, 2026

Rating: 4/5

Good nuts, tight tolerance

Very hard to hand tighten initially due to the lock, but that's expected. Holds well under vibration.

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect for high heat areas

Used these on my exhaust manifold brackets. Nylon locks would have melted, but these hold tight.

Anonymous

Feb 27, 2026

Rating: 5/5

Exactly as described

Fast shipping and the packaging was secure. Nuts are genuine high strength.

Anonymous

Feb 02, 2026

Rating: 5/5

Great quality finish

The black zinc looks sleek on my custom build. No rust after 3 months outside.

Anonymous

Jan 30, 2026

Rating: 5/5

Reliable for machinery

Bought for industrial equipment maintenance. They meet the strength requirements perfectly.

5 FAQ

Q: Do I need special tools for installation?

A: Standard sockets work, but impact wrenches are recommended for installation.

Q: What is the maximum temperature rating?

A: Since there is no nylon, they withstand up to 300°C easily.

Q: Is the black coating durable?

A: Black zinc provides good corrosion resistance for indoor and moderate outdoor use.

Q: Are these metric or SAE threads?

A: These are metric threads according to the GB6184 standard.

Q: Can these nuts be reused?

A: All-metal locks can be reused a few times, but check torque retention.

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