(50) 5/16-18" Coarse Thread Grade 8 Nylon Insert Hex Lock Bolt Nut

5/16-18 Coarse Thread Grade 8 Nylon Insert Hex Lock Nut, Pack of 50

This listing is for a pack of 50 nylon insert hex lock nuts with a 5/16-18 coarse thread and Grade 8 strength rating. The nylon insert creates friction against the mating fastener to help resist loosening from vibration, making this style of nut useful in equipment, machinery, and general repair work. These are aftermarket fasteners.

Product Details

• Product Type: Nylon insert hex lock nut
• Thread Size: 5/16-18
• Thread Type: Coarse
• Grade: 8
• Quantity: 50

Frequently Asked Questions

Q: What does the 5/16-18 thread size mean? A: The 5/16 indicates the nominal thread diameter, and the 18 indicates 18 threads per inch in a coarse thread series.

Q: What is the nylon insert for? A: The nylon insert grips the threads of a mating bolt to add resistance to loosening from vibration. Verify the thread size and grade required by your application before ordering.

This is an aftermarket replacement part. Confirm fitment before purchase.