Value Collection 101031PR Set Screw 1-72 X 3/16 in Cup Point

Product Description

The VALUE COLLECTION 101031PR is a Grade 8 alloy steel set screw designed for secure, headless fastening in precision mechanical assemblies. The cup point tip bites into the mating surface to resist rotation and axial movement without requiring a protruding head. Driven by a 0.028-inch hex key, this screw is built to ASME/ANSI B18.3 and ASTM F912 standards, confirming dimensional accuracy and mechanical performance. It is suited for tight-clearance applications where a conventional headed fastener cannot be used and holding strength is critical.

This set screw is commonly used in light mechanical assemblies, shaft collars, pulleys, gears, and adjustable linkage components. The 1-72 unified fine thread (UNF) ensures precise engagement in small-diameter tapped holes, making it a standard choice in instrumentation, HVAC actuator assemblies, small motor components, and other precision equipment. Installation is performed by machine shops, maintenance technicians, and skilled tradespeople working with fine-threaded hardware.

Key Features

• Cup point tip bites into mating surface for strong rotational and axial hold
• Grade 8 alloy steel construction provides high tensile and torsional strength
• 1-72 UNF thread for precision engagement in small tapped holes
• Hex socket drive accepts a 0.028-inch hex key
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• Headless design fits flush or below surface for clearance-critical applications

Compatibility

Designed as an OEM-style replacement or direct-fit set screw for any application requiring a 1-72 UNF threaded, 3/16-inch overall length, cup point headless screw conforming to ASME/ANSI B18.3.

Installation Notes

Installation is performed by machinists or mechanical technicians using a calibrated 0.028-inch hex key. Always de-energize and lock out any machinery before servicing fasteners on rotating or pressurized components. Thread engagement should be confirmed against the tapped hole depth before driving to avoid stripping the fine 1-72 UNF threads. Apply thread-locking compound if vibration resistance is required and the application permits it.