Value Collection 409087PR Set Screw 7/16-14 X 1.5in Cup Point

Product Description

The VALUE COLLECTION 409087PR is a cup point set screw designed for mechanical fastening applications where a headless, flush-mount fastener is required. Sized at 7/16-14 UNC thread with a 1-1/2 inch length measured under head, this set screw features a square drive recess and a cup point tip that bites into the mating surface to resist rotation and axial movement. Manufactured from Grade 2 alloy steel, it delivers solid holding strength for general industrial and mechanical assembly work. Machinists, millwrights, and maintenance technicians typically install these in shafts, collars, gears, and pulleys where a recessed fastener is needed.

This set screw is suited for use in rotating shaft assemblies, shaft collars, shaft couplings, gear hubs, and similar mechanical components found in both light industrial and commercial equipment. The cup point geometry creates an indentation in the mating shaft or surface, providing positive locking under vibration and load. Applications span HVAC fan shaft assemblies, pump impeller hubs, conveyor components, and general equipment maintenance scenarios where UNC-threaded set screws are specified.

Key Features

• Cup point tip bites into mating surface for positive anti-rotation holding
• Square drive recess accepts standard square-key drivers for secure torque application
• 7/16-14 UNC thread standard for broad compatibility with tapped holes
• 1-1/2 inch length under head provides deep thread engagement
• Grade 2 alloy steel construction for reliable strength in mechanical fastening
• Headless design sits flush or below surface to avoid interference with adjacent components

Compatibility

Designed as a standard UNC set screw replacement or new-installation fastener for any application requiring a 7/16-14 threaded, cup point, square drive set screw in alloy steel.

Installation Notes

Installation requires a correctly sized square-drive bit or key. De-energize and lock out any rotating machinery before servicing shaft assemblies. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading or galling. Follow applicable equipment manufacturer specifications for seating depth and any required thread-locking compound.