Description
Reviews
| 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 |
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.
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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