Value Collection 63587 Set Screw 1/4-20 X 3/8 in Cup Point SS316

Product Description

The VALUE COLLECTION 63587 is a 1/4-20 UNC cup point set screw manufactured from Grade 316 stainless steel. Set screws are fully threaded fasteners with no head that seat flush within a tapped hole, applying clamping force through their point directly onto a mating shaft or surface. The cup point geometry creates a small indentation in the contact surface, resisting rotation and axial movement of collars, hubs, and pulleys. Driven with a 1/8-inch hex key, this screw measures 3/8 inches in overall length. Grade 316 stainless steel provides corrosion resistance in wet, marine, and chemical-exposure environments. Each package contains 25 pieces.

This set screw is suited for mechanical assemblies requiring a secure shaft-to-hub connection where flush mounting is necessary. Common applications include shaft collars, sprockets, pulleys, knobs, and positioning components in HVAC equipment, pump assemblies, and general industrial machinery. The cup point is the standard choice when a modest bite into the shaft surface is acceptable and repeated disassembly is not frequent. Grade 316 stainless construction makes it appropriate for food-service, marine, and corrosive-environment installations where carbon steel fasteners would corrode prematurely.

Key Features

• Cup point geometry bites into shaft surface to resist rotation and axial movement
• Grade 316 stainless steel construction for superior corrosion resistance in wet and chemical environments
• 1/4-20 UNC thread standard ensures wide compatibility with standard tapped holes
• 1/8-inch hex drive for use with standard Allen keys and hex drivers
• Headless design seats fully flush within tapped hole, eliminating protrusion
• Sold in a 25-piece package to support job-lot and service stocking needs

Compatibility

Designed as a standard 1/4-20 UNC cup point set screw for use in any application requiring a 1/4-20 tapped hole and a 1/8-inch hex drive fastener with cup point contact.

Installation Notes

Installation is performed with a 1/8-inch hex key or Allen driver; ensure the driver is fully seated before applying torque to avoid rounding the drive socket. Verify the mating tapped hole is clean and free of debris before threading the screw. De-energize or lock out any rotating equipment before servicing shaft-mounted components. In corrosive or submerged environments, confirm all mating hardware is also stainless or compatible material to prevent galvanic corrosion.