Value Collection NT-256-250-SS Set Screw 2-56 1/4in Ss

Product Description

The VALUE COLLECTION NT-256-250-SS is a 2-56 x 1/4 inch hex drive set screw with a soft nylon tip point, machined from 18-8 stainless steel. Set screws of this type are used to secure a component — such as a shaft collar, pulley, or gear — against a shaft without protruding above the surface. The hex socket drive accepts a standard hex key (Allen wrench). The nylon tip protects the mating shaft surface from marring or scoring during installation and adjustment. The 18-8 stainless steel construction provides corrosion resistance suitable for general industrial, mechanical, and light marine applications. Qualified trades, assemblers, and maintenance technicians routinely stock this size for precision fastening tasks.

This set screw is suited for use in light mechanical assemblies requiring a non-marring, soft-tip fastener in a 2-56 UNC/UNF threaded hole. Common applications include shaft-collar retention, set-position locking on small-diameter shafts, optical mounts, electronic enclosures, and instrumentation panels. The 1/4 inch thread engagement length is appropriate for thin hubs and compact assemblies where a full-length screw is not practical. Sold individually per package; minimum order quantity is 10 units.

Key Features

• 2-56 thread size with UNC/UNF dual-standard compatibility
• 1/4 inch threaded length for compact hub and collar applications
• Nylon soft tip prevents shaft marring and surface damage during installation
• Hex (Allen) drive socket for positive torque application in tight spaces
• 18-8 stainless steel construction offers corrosion resistance in wet or humid environments
• No protruding head — sits flush or below the surface for clearance-critical assemblies

Compatibility

Designed as a standard replacement or stock fastener for any assembly with a 2-56 UNC or UNF threaded hole requiring a hex drive soft-tip set screw.

Installation Notes

Installation requires a correctly sized hex key to avoid rounding the socket drive. Ensure the threaded hole is clean and free of debris before threading the screw in by hand to confirm proper engagement. Do not overtighten — the nylon tip can deform under excessive torque, reducing its gripping and protective function. Always de-energize or lock out any rotating equipment before adjusting or replacing set screws on shafts or drive components.