Value Collection 409103PR Set Screw 1/2-13 X 2-3/4 Inches

Product Description

The VALUE COLLECTION 409103PR is a cup point set screw designed for secure, non-permanent fastening in mechanical assemblies. Manufactured from Grade 2 alloy steel, it provides reliable holding strength in shaft-to-hub and collar applications. The 1/2-13 UNC thread with a 2-3/4 inch length under head suits medium-duty clamping tasks across a broad range of industrial and mechanical installations. The square drive allows solid torque transfer with a standard square bit or wrench, reducing the risk of cam-out under load. Licensed machinists, millwrights, and industrial maintenance technicians are the primary installers for this fastener type.

This set screw is used in mechanical power transmission applications where a threaded fastener must lock a component such as a gear, pulley, sprocket, or collar to a shaft. It is suited for both light industrial and general mechanical assembly environments. The cup point digs into the shaft surface to resist rotational and axial movement. This fastener is sold in multiples of 50 per minimum order, with a package quantity of 1, making it appropriate for shop stock, MRO bins, and production line use.

Key Features

• Cup point geometry bites into shaft material to resist rotation and axial shift
• Square drive for positive torque transfer with minimal cam-out risk
• 1/2-13 UNC thread standard ensures broad compatibility with tapped holes in standard inch-measurement assemblies
• Alloy steel construction provides strength suitable for medium-duty clamping loads
• Grade 2 material designation for consistent mechanical property standards
• Length measured under head at 2-3/4 inches to suit deeper tapped hole applications

Compatibility

Designed as a standard 1/2-13 UNC cup point set screw suitable for tapped holes conforming to UNC inch-standard thread specifications in mechanical assemblies, collars, hubs, and shaft-locking hardware.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a square drive bit or appropriate wrench. Always de-energize and lock out equipment before installing or removing set screws on rotating shafts. Confirm the tapped hole is clean and free of debris before threading in the fastener. Do not exceed the rated torsional limits of the alloy steel grade when applying torque.