Value Collection 409097PR Set Screw 1/2-13 X 1-1/4 in Cup Point

Product Description

The VALUE COLLECTION 409097PR is a cup point set screw used to secure components such as collars, pulleys, sprockets, and gears onto shafts. It features a 1/2-13 UNC thread with a 1-1/4 inch length measured under head, and a square drive for reliable torque application. Manufactured from Grade 2 alloy steel, this fastener delivers the hardness and shear resistance required in mechanical power transmission applications. The cup point geometry bites into the shaft surface to resist rotational and axial movement without requiring a through-hole. Licensed trades and maintenance technicians working in industrial, HVAC mechanical, or commercial maintenance settings commonly install this type of fastener.

This set screw is suited for use in rotating shaft assemblies where a semi-permanent hold is required. The UNC thread standard makes it compatible with standard inch-series tapped holes across a wide range of manufactured components. Its cup point design is appropriate for use on hardened or unhardened shaft surfaces in moderate-load applications. Minimum order quantity is 50 pieces, making this item appropriate for shop stock, service van restocking, or production assembly use.

Key Features

• Cup point geometry grips shaft surface to resist axial and rotational movement
• Square drive accepts standard square keys for consistent torque transfer
• 1/2-13 UNC thread for compatibility with standard inch-series tapped holes
• 1-1/4 inch length measured under head for appropriate engagement depth
• Grade 2 alloy steel construction provides hardness for mechanical fastening applications
• Sold in multiples of 50 for bulk restocking and production use

Compatibility

Designed as an OEM-style replacement or stock fastener for mechanical assemblies requiring a 1/2-13 UNC cup point set screw in alloy steel.

Installation Notes

Installation is typically performed by millwrights, maintenance technicians, or mechanical contractors. De-energize and lock out all rotating equipment before installing or removing set screws. Use a properly sized square drive key to avoid rounding the drive recess. Do not overtighten beyond the torque appropriate for the thread size and material grade, and ensure the shaft surface is clean and free of oil before seating the cup point.