Value Collection NT-1420-500-AS Set Screw 1/4-20 X 1/2 in

Product Description

The VALUE COLLECTION NT-1420-500-AS is a 1/4-20 x 1/2 inch hex-drive set screw with a soft nylon tip point, manufactured from Grade 8 alloy steel. Set screws are headless fasteners that thread fully into a tapped hole to secure a component — such as a collar, gear, or pulley — against a shaft without protruding hardware. The nylon soft tip protects the mating shaft surface from marring while still providing reliable holding force. The hex socket drive accepts a standard hex key for installation and removal. Grade 8 alloy steel construction provides high tensile strength suited for demanding mechanical assemblies.

This set screw is suited for mechanical and industrial applications where shaft-to-hub locking is required without surface damage to the shaft. Common install scenarios include HVAC blower wheel hubs, motor shaft collars, pump impeller assemblies, and general mechanical equipment. The 1/4-20 UNC/UNF thread standard ensures broad compatibility with standard tapped holes found in light to medium-duty assemblies. Thread length measurement covers the full 1/2 inch body length.

Key Features

• Soft nylon tip protects shaft surfaces from scoring or marring during and after installation
• Grade 8 alloy steel construction provides high tensile and proof load strength
• Hex socket drive for use with standard hex key or Allen wrench
• 1/4-20 UNC/UNF thread standard fits widely available tapped holes
• Full-body thread length of 1/2 inch for maximum thread engagement
• Headless design sits flush or below surface for clean, low-profile installation

Compatibility

Designed as a standard 1/4-20 x 1/2 inch soft-tip set screw for use in any tapped hole meeting the 1/4-20 UNC or UNF thread standard.

Installation Notes

Installation is performed by threading the set screw into a pre-tapped 1/4-20 hole using a properly sized hex key. Ensure the mating component is correctly positioned on the shaft before fully seating the screw. Follow applicable torque guidelines from the equipment manufacturer for Grade 8 fasteners of this thread size. Minimum order quantity for this part is 10 pieces.