Value Collection 329270BR Hex Jam Nut 1-1/4-7 Unc Grade 2

Product Description

The VALUE COLLECTION 329270BR is a hex jam nut threaded to a 1-1/4-7 UNC right-hand specification and manufactured from Grade 2 steel with a bright, uncoated finish. Jam nuts are thin hex nuts used primarily as locknuts to secure a standard hex nut in place or to lock a threaded fastener against a surface. At 1-7/8 inches across flats and 0.7188 inches in height, this nut conforms to standard UNC dimensional tolerances. It does not meet military specifications. Installers in HVAC, plumbing, electrical, and general mechanical trades use jam nuts wherever a low-profile locking fastener is required on a 1-1/4-7 threaded rod, bolt, or stud.

This jam nut is suited for general industrial, mechanical, and trade applications where a 1-1/4-7 UNC thread engagement is required. Typical scenarios include securing pipe hangers, threaded rod assemblies, equipment mounting hardware, and structural fastener stacks. The uncoated bright finish is appropriate for indoor or controlled-environment installations where corrosion resistance is not a primary concern. This item is sold individually and carries a minimum order quantity of 10 units per order.

Key Features

• 1-1/4-7 UNC right-hand thread for broad fastener compatibility
• Low-profile jam nut design for use as a locknut or secondary fastening element
• Grade 2 steel construction provides adequate tensile strength for general-duty applications
• 1-7/8 inches across flats fits standard SAE wrenches and sockets
• Bright uncoated finish — no additional coating to affect thread fit
• Does not meet military specifications — suitable for commercial and trade use

Compatibility

Designed for use with any 1-1/4-7 UNC threaded bolt, rod, or stud in general commercial, industrial, or trade mechanical assemblies.

Installation Notes

Install using a standard open-end or box wrench sized for 1-7/8 inches across flats. When used as a jam nut, thread it against a primary nut and tighten the pair together to lock the assembly. De-energize and depressurize any system before servicing fasteners on live mechanical or piping assemblies. Follow applicable codes and torque practices for the fastener grade and joint type.