Value Collection 601380PR Set Screw 9/16-18 X 1/2 in Cup Point

Product Description

The VALUE COLLECTION 601380PR is a cup point set screw designed for shaft and hub clamping applications across a wide range of mechanical assemblies. Manufactured from alloy steel to ASTM F912 and ASME/ANSI B18.3 standards, this fastener delivers reliable holding force at 9/16-18 UNF threading and an overall length of 1/2 inch. Drive engagement is achieved with a 1/4-inch hex key. The cup point geometry bites into the mating surface to resist rotational and axial movement, making it a dependable choice for maintenance technicians and industrial mechanics working with pulleys, collars, gears, and sprockets.

This set screw suits residential and commercial mechanical systems wherever a headless fastener is required to secure a component to a shaft without protruding beyond the bore surface. Typical applications include motor shaft collars, sheave assemblies, and coupling hubs found in HVAC, pumping, and general mechanical drive systems. The UNF thread standard is widely compatible with pre-tapped metric and fractional inch bore hardware produced to North American tooling standards.

Key Features

• Cup point geometry bites into shaft material to resist rotation and axial movement
• Alloy steel construction rated to ASTM F912 for strength and hardness
• Conforms to ASME/ANSI B18.3 dimensional standards
• 9/16-18 UNF thread for a secure, precise fit in standard tapped bores
• 1/4-inch hex drive for engagement with common Allen keys and hex bit drivers
• Headless design allows flush or sub-flush installation inside a bore

Compatibility

Designed as a standard ASME/ANSI B18.3 cup point set screw suitable for use in any 9/16-18 UNF tapped bore requiring a headless alloy steel fastener.

Installation Notes

Installation is performed with a 1/4-inch hex key or hex bit driver. Always de-energize and lock out any rotating equipment before servicing shaft-mounted components. Ensure the tapped bore is clean and free of debris before threading the screw to avoid cross-threading or galling. Tighten to the torque specification called out in the equipment manufacturer's service documentation.