Value Collection A996238 Hex Lock Nut 1-1/2-12 Grade 8 5 Pack

Product Description

The VALUE COLLECTION A996238 is a 1-1/2-12 UNF hex lock nut with a nylon insert locking style, manufactured from Grade 8 steel with a yellow zinc dichromate finish. The nylon insert creates interference with mating threads to resist loosening caused by vibration and torque load. At 1-39/64 inches high with a 2-3/16 inch width across flats, this nut is suited for heavy-duty fastening applications where a fine-thread profile and positive locking are required. This package contains 5 nuts. Installation is performed by maintenance technicians, millwrights, and mechanical assemblers working with high-strength bolted joints.

This hex lock nut is used in industrial, agricultural, automotive, and heavy equipment assembly where vibration resistance is critical. The right-hand thread direction and UNF fine-thread standard make it appropriate for applications requiring precise clamping loads and resistance to thread loosening under dynamic loads. The Grade 8 steel construction supports high-tensile fastening requirements in structural and mechanical assemblies.

Key Features

• Nylon insert locking style resists vibration-induced loosening without damaging mating threads
• Grade 8 steel construction for high-tensile-strength fastening applications
• Yellow zinc dichromate finish provides corrosion resistance
• 1-1/2-12 UNF right-hand thread for fine-pitch fastening precision
• Height of 1-39/64 inches and 2-3/16 inches across flats for standard wrench fitment
• Sold in a pack of 5

Compatibility

Designed for use with 1-1/2-12 UNF Grade 8 bolts and threaded fasteners in inch-measurement systems. Compatible with standard hex wrench and socket tooling sized for 2-3/16 inches across flats.

Installation Notes

Installation is performed using a hex socket or open-end wrench sized to 2-3/16 inches across flats. Ensure mating bolt threads are clean and free of debris before seating the nylon insert. Once the nylon insert has been fully engaged, the nut should not be reused, as the locking element loses effectiveness after removal. Follow applicable torque specifications for Grade 8 fasteners as outlined in the relevant engineering or equipment documentation.