Value Collection 88547518 Set Screw 1/2-13 X 1/2 in Cup Point

Product Description

The VALUE COLLECTION 88547518 is a Grade 8 alloy steel cup point set screw with a 1/2-13 UNC thread and a 1/2-inch overall length. Set screws are headless fasteners used to secure a component — such as a collar, gear, pulley, or hub — against a shaft or mating surface. The cup point digs into the mating surface to resist rotation and axial movement. Drive is a 1/4-inch hex socket. Grade 8 alloy steel provides high tensile strength suitable for demanding mechanical assemblies. This fastener is installed by machinists, millwrights, and maintenance technicians across industrial, HVAC, and mechanical system applications.

This set screw is suited for shaft-locking applications in motors, fans, blowers, pumps, and general mechanical assemblies where a permanent or semi-permanent hold is required. The 1/2-13 UNC thread is a coarse-thread standard, making it compatible with standard tapped holes of the same designation. The cup point style is one of the most common choices when light marring of the shaft surface is acceptable and a secure grip is required.

Key Features

• 1/2-13 UNC coarse thread for compatibility with standard tapped holes
• 1/2-inch overall length — compact profile for shallow engagement applications
• Cup point design grips shaft surface to resist rotation and axial displacement
• Grade 8 alloy steel construction for high-strength, high-torque installations
• 1/4-inch hex socket drive — standard hex key installation
• Headless design sits flush or below surface for low-profile assemblies

Compatibility

Designed as a standard 1/2-13 UNC cup point set screw for use in any tapped hole conforming to that thread specification. Suitable for general mechanical assemblies requiring a Grade 8 alloy steel headless fastener.

Installation Notes

Installation is performed with a 1/4-inch hex key or hex bit driver. Ensure the tapped hole is clean and free of debris before threading the screw. Power down and de-energize any rotating equipment before servicing fasteners on shafts or mechanical assemblies. Do not exceed the rated drive torque for the thread size, and inspect the mating shaft surface for proper seating of the cup point after final tightening.