Value Collection BT-1420-625-AS Set Screw 1/4-20 X 5/8 in

Product Description

The VALUE COLLECTION BT-1420-625-AS is a 1/4-20 x 5/8-inch set screw designed for applications requiring a soft-tip point to secure a component against a shaft or mating surface without damaging it. Constructed from Grade 8 alloy steel with a brass tip, this fastener delivers high tensile strength while protecting the contact surface from marring or gouging. The hex drive accepts a standard hex key for installation and adjustment. It is used by HVAC technicians, plumbers, electricians, and general mechanical contractors wherever a gripping fastener must seat against a finished or sensitive surface.

This set screw is suited for residential and commercial mechanical systems where a rotating or sliding component must be locked in position on a shaft. Common applications include fan blade hubs, pulley assemblies, coupling collars, and motor shaft collars found in HVAC blower assemblies, pump drives, and similar rotating equipment. The brass soft tip conforms slightly under load, distributing clamping force without scoring the shaft surface, which simplifies future disassembly and repositioning.

Key Features

• Brass soft tip protects shaft surfaces from marring during installation and removal
• Grade 8 alloy steel body provides high tensile and proof load strength
• 1/4-20 UNC/UNF thread for wide compatibility with standard tapped holes
• Hex drive accepts a standard hex key for precise torque application in tight spaces
• 5/8-inch thread length suits typical collar and hub thicknesses in mechanical assemblies

Compatibility

Designed as a standard 1/4-20 set screw for use in any tapped hole accepting a 1/4-20 UNC or UNF thread; typical applications include shaft collars, pulley hubs, and coupling assemblies in HVAC, pump, and general mechanical systems.

Installation Notes

Installation requires a properly sized hex key matched to the drive socket. Ensure the shaft and tapped hole are clean and free of debris before threading the screw. De-energize all equipment and lock out power before servicing rotating assemblies. Avoid overtightening, as excessive force can deform the brass tip and reduce its surface-protecting function.