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| Item | Hex Locknut with Nylon Insert | |
| Type | Standard | |
| Material | Steel | |
| Finish | Plain | |
| Grade | 8 | |
| Thread Size | 7/16-20 | |
| Thread Type | UNF | |
| Thread Direction | Right Hand | |
| Width | 5/8" | |
| Height | 29/64" | |
| Temp. (F) | Up to 250 | |
| Rockwell Hardness | C26-34 | |
| For Use With | Grade 5 and 8 Bolts and Screws | |
| Application | Resists Vibration | |
| Meets/Exceeds | IFI 100/107 | |
| Package Quantity | 100 |
The "Usually Ships" reflects when an item is generally expected to ship from Grainger based on its stocking location. Real-time availability information will be shown during the checkout process and on the e-mail order confirmation (for U.S. and Puerto Rico - US customers only). Please allow additional delivery time for international orders.





