Value Collection 409113BR Set Screw 5/8-11 X 1-1/4 in Cup Point

Product Description

The VALUE COLLECTION 409113BR is a cup point set screw designed for mechanical fastening applications where a hardened, recessed fastener is required to lock components in place without a protruding head. Manufactured from alloy steel at Material Grade 2, this screw features a 5/8-11 UNC thread size and a nominal length of 1-1/4 inches measured under the head. The square drive type allows positive torque transfer with minimal cam-out. Set screws of this style are used by millwrights, maintenance technicians, and mechanical assemblers across industrial and commercial settings.

This set screw is suited for securing hubs, collars, pulleys, gears, and shafts in rotating machinery. The cup point geometry bites into the mating surface to resist axial and rotational movement under load. The 5/8-11 UNC coarse thread provides strong thread engagement in standard tapped holes. Typical applications include motor shaft collars, conveyor components, and general mechanical assemblies where a flush-seated locking fastener is specified.

Key Features

• Cup point geometry bites into mating shaft or surface to resist rotation and axial movement
• Square drive type for positive torque engagement and reduced cam-out risk
• 5/8-11 UNC coarse thread for broad compatibility with standard tapped holes
• Alloy steel construction, Material Grade 2, for durability in mechanical assembly applications
• 1-1/4 inch length measured under head for consistent installation depth reference
• Headless profile sits flush or below surface when fully seated

Compatibility

Designed as a standard replacement or stock fastener for any mechanical assembly requiring a 5/8-11 UNC cup point set screw with a square drive in alloy steel.

Installation Notes

Installation is typically performed by millwrights or mechanical maintenance technicians using a square drive key or bit sized to fit the drive recess. Always de-energize and lock out rotating equipment before servicing shaft-mounted components. Ensure the tapped hole is clean and free of debris before thread engagement. Do not exceed the torque capacity of the drive recess or the thread engagement depth of the receiving component.