Value Collection R63642126 Set Screw 3/8-16 Cup Point Brass

Product Description

The VALUE COLLECTION R63642126 is a cup point set screw designed for secure, non-permanent fastening in mechanical assemblies. Manufactured from brass, this headless fastener threads into a tapped hole and locks shafts, collars, pulleys, and similar components in place by driving the cup-shaped point into the mating surface. The 3/8-16 UNC thread and 3/8-inch overall length make it suitable for medium-duty clamping applications where a compact profile is required. A 3/16-inch hex key drives the screw to full seating depth. Brass construction provides corrosion resistance and is non-magnetic, making it appropriate for applications where those properties are needed.

This set screw is used in residential and light commercial mechanical, HVAC, plumbing, and general industrial assembly work. Common applications include shaft-to-hub connections on fan assemblies, motor couplings, valve stems, and set collar installations. The cup point bites into the shaft surface to resist axial and rotational movement without requiring a through-hole or bolt head clearance. Machinists, millwrights, HVAC technicians, and plumbers regularly use cup point set screws in both OEM and field-service contexts.

Key Features

• 3/8-16 UNC thread for compatibility with standard tapped holes
• 3/8-inch overall length for compact, flush or sub-flush installation
• Cup point geometry bites into shaft surface to resist axial and rotational movement
• Brass material provides corrosion resistance and non-magnetic properties
• 3/16-inch hex key drive for precise torque application in tight spaces

Compatibility

Designed as a standard 3/8-16 UNC cup point set screw for use in any application requiring a headless brass fastener with a 3/16-inch hex drive and 3/8-inch overall length.

Installation Notes

Set screws are installed by machinists, millwrights, and trade technicians using a properly sized hex key — in this case, 3/16 inch. Ensure the mating tapped hole is clean and undamaged before threading the screw in by hand to confirm full thread engagement. De-energize and lock out any rotating or pressurized equipment before installing or removing set screws on shaft assemblies. Do not overtighten brass fasteners, as the material is softer than steel and susceptible to thread damage under excessive torque.