Value Collection 101209PR Set Screw 8-32 3/4in Cup Point

Product Description

The VALUE COLLECTION 101209PR is a headless cup point set screw designed for mechanical assemblies where a fastener must seat flush or below a surface. Sized at 8-32 UNC thread with an overall length of 0.75 inches, this screw is driven by a 5/64-inch hex key and locks into position by pressing its cup point into the mating shaft or surface. Manufactured from Grade 8 alloy steel, it delivers the hardness and shear strength required in moderate-to-high preload applications. Conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards.

Cup point set screws are widely used in power transmission components such as collars, shaft couplings, pulleys, gears, and sprockets where the point must bite into a shaft to resist rotation or axial movement. The 8-32 thread size suits light-to-medium duty assemblies common in HVAC equipment, electrical enclosures, motors, and similar mechanical hardware. Installation requires a 5/64-inch hex key and is performed by maintenance technicians, millwrights, or HVAC and electrical trade professionals during equipment assembly or repair.

Key Features

• 8-32 UNC thread provides reliable engagement in standard tapped holes
• Cup point geometry bites into shaft material to resist both rotation and axial movement
• Grade 8 alloy steel construction offers high hardness and shear strength
• 5/64-inch hex drive allows access in tight-clearance installations
• Conforms to ASME/ANSI B18.3 and ASTM F912 for dimensional consistency
• Headless design seats flush or below surface for clearance-critical assemblies

Compatibility

Designed as a standard 8-32 UNC cup point set screw suitable for any tapped hole meeting ASME/ANSI B18.3 specifications at this thread size and length.

Installation Notes

Installation requires a 5/64-inch hex key torqued by hand to the assembly specification for the mating component. Ensure the shaft or mating surface is clean and free of debris before seating the cup point. De-energize and lock out any equipment before installing or removing set screws in rotating assemblies per applicable safety procedures. Do not substitute a larger or smaller hex key, as rounding the drive socket will make removal difficult.