Value Collection R63000961 Set Screw 1/4-20 X 5/8 in Cup Point

Product Description

The VALUE COLLECTION R63000961 is a 1/4-20 UNC set screw with a cup point tip and a square drive, manufactured from 18-8 stainless steel. At 5/8 inches in length, this fastener is designed to secure collars, hubs, pulleys, and similar components onto shafts by biting into the shaft surface with its cup point. The 18-8 stainless steel construction provides solid corrosion resistance in moderate-exposure environments. Installation requires a square drive key. Maintenance technicians, millwrights, and general contractors working across industrial and commercial applications will find this a standard fastener for mechanical assemblies.

This set screw is suited for general mechanical and industrial applications where a headless, flush-mounted fastener is required. It is commonly used in shaft-to-hub connections, equipment frames, and adjustable mechanical stops. The UNC thread standard makes it compatible with standard 1/4-20 tapped holes found throughout commercial and industrial equipment. The cup point provides reliable gripping force against steel and similar shaft materials without requiring an external head profile.

Key Features

• Cup point tip bites into shaft surface for reliable holding force
• Square drive for positive torque transfer during installation and removal
• 18-8 stainless steel construction for corrosion resistance in moderate environments
• Headless design sits flush or below surface for clearance-sensitive applications
• UNC 1/4-20 thread standard compatible with widely available tapped holes

Compatibility

Designed as a standard 1/4-20 UNC headless set screw for use in any application requiring a cup point fastener in a 1/4-20 tapped hole.

Installation Notes

Installation is performed with a square drive key sized to the fastener. Always ensure the mating tapped hole is clean and free of debris before threading the screw. De-energize and lock out any machinery before servicing shaft or hub assemblies. Avoid overtightening, which can damage the cup point or the shaft surface.