Value Collection 101473PR Set Screw 3/8-24 X 1/4 in Cup Point

Product Description

The VALUE COLLECTION 101473PR is a 3/8-24 UNF cup point set screw manufactured from Grade 8 alloy steel. Set screws are fully threaded fasteners with no head — they seat flush or below a surface and apply clamping force through a recessed drive and a hardened point. This cup point design bites into the mating surface to resist rotation and axial movement without requiring a protruding head. The 3/16-inch hex key drive provides positive torque engagement in tight collar or hub installations. Applicable wherever a secure, low-profile locking fastener is required in mechanical assemblies, shafts, or collars.

This set screw is used in industrial and mechanical maintenance applications where shaft collars, sprockets, pulleys, or hubs must be locked to a rotating shaft. The cup point is appropriate for permanent or semi-permanent installations where minor surface marking of the shaft is acceptable. Typical installers include maintenance mechanics, millwrights, and field technicians working on mechanical drive systems and equipment assemblies.

Key Features

• 3/8-24 UNF thread for fine-pitch engagement and precise clamping
• Cup point geometry bites into shaft surface to resist axial and rotational movement
• Grade 8 alloy steel construction for high tensile and proof load capacity
• 3/16-inch hex key drive for use with standard Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• Headless design seats flush or below surface for clearance-critical applications

Compatibility

Designed as a standard UNF set screw for use in any threaded hole sized for 3/8-24 thread engagement, including shaft collars, set-screw hubs, and similar mechanical components requiring a cup point locking fastener.

Installation Notes

Installation requires a 3/16-inch hex key or Allen wrench. De-energize and lock out all rotating equipment before installing or removing set screws from shafts or drive components. Do not exceed the rated torque range for Grade 8 fasteners of this thread size — consult applicable fastener torque tables. Inspect threads for damage before installation to ensure full engagement and proper seating of the cup point.