Value Collection A996252 Left Hand Hex Jam Nut 1-14 Unf

Product Description

The VALUE COLLECTION A996252 is a left-hand-threaded hex jam nut machined from steel with a zinc clear finish. Jam nuts are low-profile fasteners used to lock a primary nut in place or to secure threaded rod, studs, and adjustable assemblies against vibration and loosening. This nut follows the Unified National Fine (UNF) thread standard at a 1-14 thread designation, meaning one inch nominal diameter with 14 threads per inch. The left-hand thread direction requires counterclockwise installation and is specified wherever the application demands resistance to rotational loosening in the opposite direction from a standard right-hand fastener. The zinc clear finish provides light corrosion resistance for general indoor and moderate-environment use.

Left-hand hex jam nuts in the 1-14 UNF specification are commonly used in mechanical assemblies, rotating equipment, threaded rod applications, and machinery where vibration or rotational forces could back out a standard right-hand fastener. They are appropriate for use in HVAC equipment frames, pump and motor mounting hardware, and general industrial or trade maintenance applications. Sold in a package quantity of 10, this SKU is well suited for technicians stocking fastener kits or completing a multi-point assembly in a single order.

Key Features

• Left-hand thread direction for applications requiring counterclockwise-tightening fasteners
• 1-14 UNF thread form — one inch nominal diameter, 14 threads per inch, fine thread series
• Low-profile jam nut design for locking against a primary nut or securing threaded studs
• Steel construction with zinc clear finish for light corrosion resistance
• 1-1/2 inches across flats for use with standard hex wrenches and sockets
• Package quantity of 10 nuts per order

Compatibility

Designed as a standard replacement or stock fastener for any assembly calling for a 1-14 UNF left-hand hex jam nut with a 1-1/2-inch across-flats dimension.

Installation Notes

Left-hand fasteners must be turned counterclockwise to tighten — clearly mark or segregate these nuts from right-hand hardware before installation to avoid cross-threading. De-energize or lock out equipment before servicing any fastened assembly in accordance with applicable safety codes. Use a properly sized hex wrench or socket matching the 1-1/2-inch across-flats dimension to seat the nut fully without slipping.