Value Collection 409108PR Set Screw 1/2-13 X 5 in Cup Point

Product Description

The VALUE COLLECTION 409108PR is a 1/2-13 UNC cup point set screw measuring 5 inches in length, manufactured from Grade 2 alloy steel. Set screws of this type are fully threaded, headless fasteners used to secure a component — such as a collar, gear, pulley, or sprocket — against a shaft or inside a bore. The cup point digs into the mating surface to resist rotational and axial movement under load. Drive is square, requiring a square key or bit. This fastener is suited for industrial, mechanical, and maintenance applications where a reliable, tamper-resistant hold is needed without a protruding head.

The 409108PR is applied in mechanical assemblies where a flush or recessed fastener is required. Common installations include shaft collars, set collar assemblies, gearboxes, conveyor components, and machine frames. The 1/2-13 UNC thread and 5-inch length make it appropriate for deeper engagement in thick hubs or stacked assemblies. Mechanical technicians and millwrights typically install this fastener during equipment assembly or scheduled maintenance. Minimum order quantity is 5 pieces.

Key Features

• Cup point geometry provides strong bite into shaft surfaces to resist rotation and axial displacement
• Square drive allows high torque input with a standard square key or bit
• 1/2-13 UNC thread standard ensures broad compatibility with tapped holes in standard inch tooling
• 5-inch length supports deep hub engagement in thick or stacked mechanical assemblies
• Grade 2 alloy steel construction provides adequate hardness for general mechanical fastening applications

Compatibility

Designed as a standard UNC inch-series set screw for use in any tapped 1/2-13 hole requiring a cup point, square drive fastener with 5 inches of thread engagement.

Installation Notes

Installation is performed by mechanical technicians or millwrights using a square drive key or bit sized to the socket. De-energize and lock out all rotating machinery before installing or adjusting set screws on shaft assemblies. Apply thread-locking compound or follow the equipment manufacturer torque guidance as appropriate. Avoid cross-threading by starting engagement by hand before applying drive torque.