Value Collection SNFI2050-050BX Slotted Hex Lock Nut 1/2-20

Product Description

The VALUE COLLECTION SNFI2050-050BX is a slotted hex lock nut designed to resist loosening under vibration and dynamic loading conditions. Manufactured from Grade 2 steel with a bright uncoated finish, this fastener conforms to Unified National Fine (UNF) thread standards at a 1/2-20 thread size. The slotted design accommodates a cotter pin or safety wire for positive mechanical locking. At 7/16 inches high with a 3/4-inch width across flats, this nut is sized for standard hex tooling. It is used across a broad range of mechanical, plumbing, and light structural assemblies where a positive-retention fastener is required.

This slotted hex lock nut suits residential and commercial applications where fastener retention under vibration is a priority. Typical install scenarios include equipment mounting, piping supports, and mechanical linkages in HVAC, plumbing, and general trade work. The right-hand thread direction follows standard UNF convention. This nut ships in multiples of 50 units, making it appropriate for shop stock, service vehicle inventory, or maintenance department supply.

Key Features

• Slotted design accepts cotter pin or safety wire for positive mechanical locking
• Grade 2 steel construction provides adequate strength for light to medium fastening applications
• 1/2-20 UNF right-hand thread for compatibility with standard fine-thread fastener assemblies
• Bright uncoated finish — suitable for dry or protected interior environments
• 3/4-inch width across flats fits standard hex wrenches and sockets
• Sold in multiples of 50 for efficient stock replenishment

Compatibility

Designed as a standard UNF 1/2-20 slotted hex lock nut for use in any assembly requiring a fine-thread Grade 2 steel locking nut at this thread size.

Installation Notes

Installation is performed by hand-threading onto a 1/2-20 UNF male fastener, then tightening with a 3/4-inch hex wrench or socket to the required torque per the assembly specification. After tightening, align the slots with the cotter pin hole in the mating bolt and install a cotter pin or safety wire to secure the nut against rotation. Always de-energize or depressurize the assembly before servicing fasteners on active mechanical or fluid systems.