Value Collection 409123BR Set Screw 5/8-11 X 4-1/2 in Cup Point

Product Description

The VALUE COLLECTION 409123BR is a cup point set screw designed for shaft-to-hub locking and similar mechanical fastening applications. It features a 5/8-11 UNC thread and measures 4-1/2 inches in length, measured under the head. Manufactured from Grade 2 alloy steel, this fastener delivers solid holding strength for industrial and mechanical assembly work. The square drive style allows positive engagement with a socket or key during installation. Maintenance technicians, millwrights, and general mechanical trades rely on this style of fastener for securing pulleys, collars, and gears to shafting.

This set screw is suited for residential, commercial, and light industrial mechanical assemblies where a headless, flush-mount fastener is required. The cup point geometry bites into the mating surface to resist rotation and axial movement. Typical install scenarios include motor shaft collars, conveyor components, pump couplings, and similar rotating equipment assemblies. It carries UNSPSC code 31161505, consistent with standard fastener classification for mechanical set screws.

Key Features

• 5/8-11 UNC thread for broad compatibility with standard inch-series tapped holes
• 4-1/2 inch length measured under head for deep-engagement applications
• Cup point geometry provides firm bite into shaft surface to resist movement
• Square drive allows high torque input without cam-out
• Grade 2 alloy steel construction for reliable mechanical strength
• Headless profile sits flush or below surface for clean, snag-free assemblies

Compatibility

Designed as a standard inch-series UNC set screw for use in any 5/8-11 tapped hole requiring a cup point, headless fastener in mechanical assembly or maintenance applications.

Installation Notes

Installation is performed by threading the fastener into a pre-tapped 5/8-11 hole using the appropriate square drive key or socket. Ensure the mating shaft or component is clean and free of debris before seating the cup point. Apply appropriate thread-locking compound if vibration is a concern in the application. Follow applicable machinery safety lockout/tagout procedures before servicing any rotating equipment.