Value Collection 101637PR Set Screw 5/8-18 X 1 in Cup Point

Product Description

The VALUE COLLECTION 101637PR is a cup point set screw designed for secure, tamper-resistant fastening in mechanical assemblies. Manufactured from Grade 8 alloy steel, this screw delivers high tensile strength suitable for demanding industrial and trade applications. The 5/8-18 UNF thread provides a fine-pitch engagement for precise torque control and vibration resistance. At 1 inch in overall length, it is driven with a 5/16-inch hex key and conforms to ASME/ANSI B18.3 and ASTM F912 standards. Machinists, millwrights, and maintenance technicians use this fastener for shaft collars, pulleys, gears, and similar components where a headless profile is required.

This set screw is suited for use in rotating equipment, shaft-to-hub connections, and mechanical assemblies across industrial, HVAC, and equipment maintenance applications. The cup point tip bites into the mating surface to resist rotation and axial movement under load. It is appropriate for use in both light-duty and heavy-duty mechanical assemblies where a fine-thread alloy steel fastener is specified. Minimum order quantity is 10 units, sold as individual pieces per package.

Key Features

• Cup point geometry bites into mating surface for strong axial and rotational holding force
• Grade 8 alloy steel construction provides high tensile and proof load strength
• 5/8-18 UNF fine-pitch thread for precise engagement and vibration resistance
• 5/16-inch hex drive compatible with standard hex keys and L-wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Headless profile eliminates snag points in rotating or close-clearance assemblies

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for any mechanical assembly requiring a 5/8-18 UNF cup point set screw in Grade 8 alloy steel.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians using a 5/16-inch hex key or L-wrench. De-energize and lock out all rotating equipment before accessing shaft collars or hubs. Ensure the mating shaft surface is clean and free of debris before seating the cup point. Do not exceed the torque rating specified for Grade 8 fasteners of this thread size as referenced in applicable mechanical standards.