[15 PKG] Heavy Hex Lock Nuts NU Nylon Inserts Steel Zinc 1 1/4-7

Heavy Hex Lock Nuts NU Nylon Inserts Steel Zinc 1 1/4-7 are engineered to deliver dependable vibration resistance and secure fastening in demanding environments. Featuring a steel body with a durable zinc finish and a built-in nylon insert, these nuts resist loosening caused by shock, vibration, and dynamic loads across automotive, industrial, and construction applications.

• Locking mechanism: Nylon insert creates a self-locking action for secure, vibration-resistant fastening.
• Material & finish: Steel body with zinc plating for corrosion resistance and long service life.
• Head style: Heavy hex design offers greater wrench surface for high-torque applications.
• Thread size: 1 1/4-7 UNC (coarse) for strong, widely compatible fastening.
• Applications: Ideal for machinery, automotive components, construction equipment, and other demanding assemblies.

Specifications

• Thread: 1 1/4-7 UNC
• Material: Steel
• Finish: Zinc plated
• Locking nut type: NU nylon insert
• Series: Heavy hex

For reliable retention in challenging environments, these NU nylon insert heavy hex lock nuts provide durability, high torque tolerance, and repeatable performance. Stock up on these staples for fastener kits and maintenance projects.