Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Thread Direction | Left-Hand (Reverse) |
| Strength Grade | 10.9 |
| Material Composition | Alloy Steel |
| Surface Finish | Zinc Plated |
| Industry Standard | DIN 934 / ISO 4032 |
| Hardness Rating | 32-39 HRC |
| Proof Stress | 940 MPa |
| Operating Temperature | -50°C to +300°C |
| Packaging Method | Bulk Industrial Box |
| Country of Origin | China |
Anonymous
Mar 15, 2026
Rating: 5/5
High quality fasteners
Ordered M16 and M24 sizes. Threading is clean and consistent. No cross-threading issues during installation.
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for my lathe setup
Needed reverse threads for a specific spindle assembly. These fit perfectly and the grade 10.9 strength is exactly what I needed.
Anonymous
Feb 23, 2026
Rating: 5/5
Reliable bulk supplier
We use these for heavy machinery maintenance. Consistent quality across multiple orders. Fast shipping too.
Anonymous
Feb 19, 2026
Rating: 5/5
Hard to find size available
Glad to find M30 left-hand nuts in stock. Saved me a lot of time sourcing these locally.
Anonymous
Feb 17, 2026
Rating: 4/5
Good but packaging could be better
The nuts themselves are great quality. One box arrived slightly dented but the contents were fine. Would buy again.
Q: Will these fit standard right-hand bolts?
A: No, these are specifically designed for left-hand threaded bolts only.
Q: Are these certified for structural use?
A: They meet Grade 10.9 standards, but please consult an engineer for structural applications.
Q: Do you stock M20 size?
A: Please check the variant selector. We currently stock the sizes listed in the product title.
Q: What is the return policy if I order the wrong size?
A: Unused items in original packaging can be returned within 30 days of delivery.
Q: Is there a corrosion resistance coating?
A: Yes, they come with a standard zinc plating for moderate corrosion resistance.
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