Heavy Hex Lock Nuts NU Nylon Inserts Nylock-style lock nuts with a nylon insert that creates prevailing torque to resist loosening in vibration-prone applications. Manufactured from steel with a zinc finish for corrosion resistance, these nuts deliver durable performance in demanding environments. The 7/8-9 UNC size provides robust clamping for medium to heavy assemblies.
- Prevailing torque design uses a nylon insert to resist loosening due to vibration and dynamic loads.
- Corrosion-resistant finishsteel with zinc plating for long-lasting protection.
- Heavy hex geometry provides extra grip and even load distribution for high-torque applications.
- Thread size: 7/8-9 UNC.
- Versatile use in machinery, automotive, construction, and equipment assemblies.
Specifications
- Thread size: 7/8-9 UNC
- Type: NU Nylon Insert Lock Nut
- Material: Steel
- Finish: Zinc plating
![[40 PKG] Heavy Hex Lock Nuts NU Nylon Inserts Steel Zinc 7/8-9](https://www.nutfastener.com/wp-content/uploads/2026/09/30/1790749980/40-pkg-heavy-hex-lock-nuts-nu-nylon-inserts-steel-zinc-7-8-9.webp)
Unconditional Satisfaction Guarantee![[5000 BULK] Keps Nuts Steel Black Oxide 8/32](https://www.nutfastener.com/wp-content/uploads/2026/09/30/1790749964/5000-bulk-keps-nuts-steel-black-oxide-8-32.webp)
