Value Collection R40324444 Set Screw 1/4-20 X 3/8 in Cup Point

Product Description

The VALUE COLLECTION R40324444 is a 1/4-20 x 3/8-inch cup point set screw manufactured from Grade 18-8 stainless steel. Set screws are fully threaded fasteners with no head, designed to secure a component — such as a collar, pulley, or gear — against a shaft by bearing force directly onto the shaft surface. The cup point geometry bites into the mating surface to resist rotation and axial movement. Drive is a 1/8-inch hex (Allen) socket. These fasteners are commonly installed by machinists, millwrights, HVAC technicians, and maintenance mechanics wherever corrosion resistance and reliable holding force are required in tight-clearance assemblies.

Cup point set screws in 1/4-20 UNC thread are a standard hardware item used across a wide range of light to medium industrial, commercial, and mechanical applications. Typical installations include shaft-to-hub connections on fans, blowers, motors, and conveyor components. The 18-8 stainless steel construction makes this screw suitable for environments with moisture exposure or mild chemical contact where carbon steel fasteners would corrode. Overall length is 3/8 inches, measured as full length. This SKU is sold individually but carries a minimum order quantity of 100 pieces.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• Cup point tip bites into shaft surface to resist axial and rotational movement
• Grade 18-8 stainless steel construction resists corrosion in wet or mildly corrosive environments
• 1/8-inch hex drive accepts standard hex keys and hex-socket drivers
• Headless design installs flush or below surface for clearance-critical assemblies
• Minimum order quantity of 100 pieces suits maintenance stock and bulk repair applications

Compatibility

Designed as a standard 1/4-20 UNC cup point set screw suitable for any tapped hole or threaded assembly requiring a headless fastener in that thread size and 3/8-inch length.

Installation Notes

Install with a 1/8-inch hex key or hex-socket driver, torquing to the value specified by the equipment manufacturer for 1/4-20 set screws. Ensure the mating shaft or component surface is clean and free of oil before tightening to allow the cup point to seat properly. De-energize and lock out any machinery before accessing set screw locations on rotating components. Follow applicable ANSI or equipment OEM fastener specifications for the application.