Value Collection A996265 Left Hand Hex Jam Nut 1/4-28 Unf

Product Description

The VALUE COLLECTION A996265 is a 1/4-28 UNF left hand threaded hex jam nut designed for fastening applications where standard right hand threads are not suitable. Manufactured from steel with a zinc clear finish, this jam nut measures 7/16 inches across the flats and 0.1562 inches in height. Its low-profile hex geometry allows it to be used as a locking nut against a primary fastener. Left hand thread direction is critical in applications where rotation or vibration could loosen a conventional right hand threaded fastener. This package contains 100 nuts, making it practical for shop stock or job-lot use.

Left hand hex jam nuts are used in mechanical assemblies, rotating shaft applications, and equipment where counter-rotation forces are present. They are common in HVAC blower motor shaft assemblies, fan blade retention, pump shaft locknut positions, and similar rotating equipment found in residential and light commercial systems. Tradespeople including HVAC technicians and mechanical contractors will encounter this fastener type when servicing or rebuilding equipment with intentional left hand thread fastening points.

Key Features

• Left hand thread direction for use in counter-rotation or anti-loosening applications
• 1/4-28 UNF thread standard for fine-thread fitment
• Steel construction with zinc clear finish for corrosion resistance
• Low-profile jam nut design at 0.1562 inches high for tight clearance locations
• 7/16 inch hex across flats for standard wrench engagement
• Sold in a 100-piece package for shop stock or bulk use

Compatibility

Designed as a standard replacement or stock fastener for any 1/4-28 UNF left hand threaded application requiring a hex jam nut.

Installation Notes

Left hand threaded fasteners tighten counterclockwise and loosen clockwise — confirm thread direction before installation to avoid cross-threading or component damage. A properly sized open-end or combination wrench matching the 7/16 inch hex is recommended for correct torque application. Always de-energize and lock out equipment before accessing rotating shaft assemblies or mechanical fastening points. Consult the equipment manufacturer service documentation for specific assembly procedures.