Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Carbon Steel / 304 Stainless Steel |
| Standard | GB858 |
| Type | Six-Prong External Lock Washer |
| Surface Finish | Zinc Plated or Plain |
| Hardness | 45HRC Min |
| Suitable Thread | M6 to M20 |
| Outer Diameter | Metric Standard |
| Inner Diameter | Metric Standard |
| Thickness | 1.5mm to 3.0mm |
| Package Quantity | 100 Pieces per Box |
Anonymous
Apr 16, 2026
Rating: 4/5
Good Product
Overall satisfied. One size was slightly tight on the nut but manageable with a gentle tap. Good value for the price.
Anonymous
Mar 24, 2026
Rating: 5/5
Secure Fit
These washers grip the round nuts perfectly. I used them on a lathe project and there was no loosening due to vibration. Highly recommend for machinery.
Anonymous
Mar 07, 2026
Rating: 5/5
Fast Delivery
Exactly as described in the listing. Arrived well packaged and separated by size. Great for my DIY projects.
Anonymous
Feb 26, 2026
Rating: 5/5
High Quality Steel
No rust after months of use in my workshop. The stainless steel option is definitely worth the extra cost for durability.
Anonymous
Feb 18, 2026
Rating: 5/5
Industrial Grade
Using them on heavy machinery assemblies. The six-prong design provides excellent locking force. Will order again.
Q: Do you offer bulk pricing?
A: Yes, please contact us directly for orders exceeding 50 boxes for a discounted rate.
Q: Are matching round nuts available?
A: Yes, compatible round nuts are available. Please check our related products section.
Q: Can I use these outdoors?
A: For outdoor use, we recommend choosing the 304 Stainless Steel option to prevent rust.
Q: What is the return policy?
A: We offer a 30-day return policy for unused items in original packaging.
Q: Are these metric sizes?
A: Yes, GB858 is a metric standard. Please select the specific M-size you require from the options.
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