Value Collection R63263124 Set Screw 5/16-24 X 3/8 in Cup Point

Product Description

The VALUE COLLECTION R63263124 is a cup point set screw designed for mechanical fastening applications where a headless, flush-mount fastener is required. Sized at 5/16-24 UNF thread with an overall length of 3/8 inches, this set screw is driven with a 5/32-inch hex key. The cup point geometry bites into the mating shaft to resist rotation and axial movement. Constructed from Grade 18-8 stainless steel, it offers solid corrosion resistance for use in moderate-exposure environments. This fastener is typically installed by machinists, millwrights, and maintenance technicians on rotating shafts, collars, and mechanical assemblies.

Cup point set screws in the 5/16-24 thread range see regular use in light to medium-duty mechanical assemblies, including shaft collars, pulleys, gears, and handwheels. The UNF thread standard provides finer thread engagement compared to UNC, making it a common choice where vibration resistance or precise axial positioning is needed. Grade 18-8 stainless construction makes this screw suitable for applications where mild chemicals or moisture are present, such as food processing equipment, marine hardware, and HVAC mechanical components.

Key Features

• Cup point geometry grips shaft surface to prevent slippage and axial displacement
• 5/16-24 UNF thread for fine-pitch engagement and vibration resistance
• Grade 18-8 stainless steel construction provides corrosion resistance in moderate environments
• 5/32-inch hex drive for standard hex key installation
• Overall length of 3/8 inches suits shallow-hub and thin-collar applications
• Headless design installs flush, eliminating snag hazards on rotating components

Compatibility

Designed as a standard UNF cup point set screw suitable for use in any 5/16-24 threaded hole requiring a headless fastener with cup point geometry.

Installation Notes

Installation is performed with a 5/32-inch hex key or Allen driver. De-energize and lock out any equipment before accessing rotating shafts or mechanical assemblies per applicable OSHA lockout/tagout procedures. Do not overtighten, as excessive torque can deform the cup point or damage the mating shaft surface. Inspect threads and seating surfaces for debris or damage before installation.