Value Collection NT-1428-375-SS Set Screw 1/4-28 X 3/8 in Ss

Product Description

The Value Collection NT-1428-375-SS is a 1/4-28 hex-drive set screw with a soft nylon tip, manufactured from grade 18-8 stainless steel. Set screws of this type are used to secure a component — such as a shaft collar, pulley, or knob — against a mating shaft without a protruding head. The nylon tip protects the mating surface from marring or gouging during installation and tightening. At 3/8 inches in thread length, this screw suits applications where a compact fastener profile is required. The 18-8 stainless construction provides corrosion resistance suitable for wet, outdoor, or chemically exposed environments. Machinists, maintenance technicians, and mechanical assemblers are the typical installers.

This set screw is suited for light-duty to medium-duty mechanical assemblies across industrial, HVAC, plumbing, and general trade applications. The 1/4-28 thread is a unified fine (UNF) thread, offering higher thread engagement and better resistance to loosening under vibration compared to coarse-thread equivalents. Typical use cases include shaft-to-hub retention on fan assemblies, motor pulleys, valve handles, and similar rotating or adjustable components where surface protection of the mating part is a priority.

Key Features

• Nylon soft tip protects mating shaft surfaces from damage during tightening
• Grade 18-8 stainless steel construction for corrosion resistance in wet or outdoor environments
• 1/4-28 UNF thread provides fine-pitch engagement and vibration resistance
• Hex drive accepts standard hex keys for controlled torque application
• Headless design sits flush or below the surface for low-profile installations

Compatibility

Designed as a standard 1/4-28 UNF set screw for use in any tapped hole or threaded insert requiring a 1/4-28 fine-thread fastener with a soft tip point.

Installation Notes

Install using a properly sized hex key or Allen wrench to avoid rounding the drive socket. Ensure the tapped hole is clean and free of debris before threading in the screw. Avoid over-tightening, as excessive force can shear or deform the nylon tip and reduce its surface-protecting function. No power-down requirement applies to purely mechanical fastener installations, but always follow applicable equipment lockout-tagout procedures when working on machinery.