Value Collection 101219PR Set Screw 8-36 X 1/4in Cup Point

Product Description

The VALUE COLLECTION 101219PR is a cup point set screw designed for secure, friction-based fastening in mechanical assemblies. Manufactured from Grade 8 alloy steel, this screw delivers high tensile strength and resistance to loosening under vibration and load. The 8-36 UNF thread provides fine-pitch engagement for precise tightening, and the cup point bites into the mating surface to resist rotational movement. It is driven with a 5/64-inch hex key and meets ASME/ANSI B18.3 and ASTM F912 standards. Machinists, maintenance technicians, and assembly professionals install these fasteners in shaft collars, pulleys, gears, and similar components where a flush or sub-flush installation is required.

This set screw is suited for general industrial and mechanical maintenance applications where a headless fastener is needed to lock a component onto a shaft or within a bore. The 1/4-inch overall length and fine 8-36 UNF thread make it appropriate for use in compact or close-tolerance assemblies. It is sold individually but carries a minimum order quantity of 100 pieces, making it a standard bulk fastener for shop stock or field service kits. Typical environments include light machinery, motors, and precision mechanical devices.

Key Features

• Cup point geometry bites into shaft or mating surface to resist rotation and axial movement
• Grade 8 alloy steel construction provides high tensile and torsional strength
• Fine 8-36 UNF thread allows precise torque control and secure engagement
• 5/64-inch hex drive for use with standard hex keys or Allen wrenches
• Headless design installs flush or below the surface for clearance-critical assemblies
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as a standard headless cup point set screw for use in any mechanical assembly requiring an 8-36 UNF threaded fastener with a 5/64-inch hex drive.

Installation Notes

Installation is performed with a 5/64-inch hex key; ensure the key is fully seated before applying torque to avoid rounding the drive socket. Verify thread engagement is clean and free of debris before driving. Do not over-torque, as the small drive size limits applied torque and excessive force may strip the socket or fracture the screw. Follow applicable machinery and equipment manufacturer guidelines for fastener seating depth and torque requirements.