Value Collection 409125BR Set Screw 5/8-11 X 6 in Cup Point Grade 2

Product Description

The VALUE COLLECTION 409125BR is a 5/8-11 x 6 inch cup point set screw manufactured from Grade 2 steel with a bright, uncoated finish. Set screws are fully threaded fasteners with no head, used to secure a component — such as a collar, pulley, or gear — against or onto a shaft by applying direct clamping force through the point. The cup point geometry bites into the mating surface to resist rotation and axial movement. This fastener follows Unified National Coarse (UNC) thread standards and is measured by full length under head, which for a headless fastener equals total screw length. Technicians and tradespeople working in mechanical assemblies, HVAC equipment, and industrial maintenance will encounter this fastener type regularly.

This set screw is suited for general mechanical and industrial applications where a headless, flush-mount fastener is required. Common uses include securing shaft collars on motors and blower assemblies, locking pulleys or sprockets on drive shafts, and fixing positioning components in light to medium mechanical systems. The 5/8-11 thread size and 6 inch length make it appropriate for larger-diameter shaft assemblies requiring deeper engagement. Sold individually, it is a practical replacement or service fastener for maintenance and repair applications across HVAC, industrial equipment, and general mechanical trades.

Key Features

• Cup point geometry bites into mating shaft surface to resist rotation and axial movement
• 5/8-11 UNC thread for compatibility with standard fractional inch tapped holes
• 6 inch length provides deep engagement for larger shaft assemblies
• Grade 2 steel construction suitable for light to medium clamping loads
• Bright, uncoated finish — no coating to interfere with thread fit or torque values
• Headless design installs flush or below surface for clearance-critical applications

Compatibility

Designed as an OEM-style replacement or service fastener for any application requiring a 5/8-11 UNC cup point set screw with a 6 inch length in Grade 2 steel.

Installation Notes

Install using the correct square drive key or bit sized for this fastener to avoid drive recess damage. Verify the tapped hole is clean and free of debris before threading in the screw to prevent cross-threading. Always de-energize and lock out equipment before servicing any shaft assembly that uses set screws. Do not exceed the load ratings appropriate for Grade 2 steel in high-impact or high-vibration applications where a higher material grade may be required.