Value Collection HNFI2075LH-025T Hex Nut 3/4-16 Lh Grade 2

Product Description

The VALUE COLLECTION HNFI2075LH-025T is a 3/4-16 UNF left-hand thread hex nut manufactured from Grade 2 steel with a bright, uncoated finish. Left-hand thread fasteners are used in specific mechanical applications where counter-rotation would loosen a standard right-hand nut, such as rotating shafts, bicycle pedals, propeller assemblies, and certain HVAC fan assemblies. The nut measures 1.125 inches across flats and 41/64 inches in height, conforming to standard UNF hex nut geometry. This package contains 25 nuts and is suited for professional tradespeople, maintenance technicians, and fabricators working with left-hand thread assemblies.

Left-hand thread hex nuts like the HNFI2075LH-025T are typically used in mechanical and industrial applications where standard right-hand fasteners would loosen due to rotational forces. Common installation scenarios include rotating equipment, fan blade hubs, and specialty plumbing or mechanical linkage assemblies. The 3/4-16 UNF thread pitch makes this nut appropriate for fine-thread applications requiring a higher thread count per inch than coarse-thread equivalents, providing greater clamping force and vibration resistance in precision assemblies.

Key Features

• Left-hand thread orientation prevents loosening in counter-rotating assemblies
• 3/4-16 UNF fine-thread specification for greater clamping force and vibration resistance
• Grade 2 steel construction meets general-purpose mechanical fastening requirements
• Bright uncoated finish suitable for indoor and protected-environment use
• 1.125 inches across flats fits standard 1-1/8 inch hex wrenches and sockets
• Packaged in a 25-unit quantity for job-site or shop inventory use

Compatibility

Designed for use with 3/4-16 UNF left-hand thread bolts and studs in general mechanical, industrial, and equipment-maintenance applications.

Installation Notes

Left-hand thread fasteners tighten counter-clockwise and loosen clockwise — confirm thread direction before installation to avoid cross-threading or fastener damage. De-energize and lock out all rotating equipment before servicing any fastener on a shaft or hub assembly. Use a properly sized 1-1/8 inch open-end wrench or socket to avoid rounding the flats. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly being serviced.