Value Collection 101623BR Set Screw 5/8-11 X 1-1/4 in Cup Point

Product Description

The VALUE COLLECTION 101623BR is a Grade 8 alloy steel cup point set screw sized 5/8-11 UNC thread by 1-1/4 inches overall length. Driven with a 5/16-inch hex key, this fastener is used to secure collars, hubs, pulleys, and similar components to shafts without a protruding head. The cup point bites into the mating surface to resist rotation and axial movement under load. Manufactured to ASME/ANSI B18.3 and ASTM F912 standards, this screw meets the dimensional and mechanical requirements expected in industrial and mechanical assembly work.

Cup point set screws in this size range are common in light to medium industrial machinery, conveyor systems, motor shaft assemblies, and general fabrication applications. They are installed by machinists, millwrights, and maintenance technicians wherever a flush or recessed fastener is required to lock rotating or sliding components in place. The Grade 8 alloy steel construction provides the clamping force and hardness needed for demanding mechanical environments.

Key Features

• 5/8-11 UNC thread with 1-1/4 inches overall length for secure shaft engagement
• Cup point geometry bites into shaft surface to resist rotation and axial movement
• Grade 8 alloy steel construction for high tensile and torsional strength
• 5/16-inch hex drive accepts standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards
• Headless design sits flush or below the mating surface

Compatibility

Designed as a standard 5/8-11 UNC cup point set screw for use in collars, hubs, pulleys, gears, and similar shaft-retention applications requiring a headless fastener per ASME/ANSI B18.3.

Installation Notes

Installation is performed with a 5/16-inch hex key or Allen wrench; ensure the key is fully seated before applying torque to avoid rounding the drive socket. De-energize and lock out any machinery before installing or removing set screws on rotating shafts. Thread the screw in by hand first to confirm thread engagement before driving to final position. Follow applicable machinery and fastener specifications for the assembly being serviced.