Value Collection 101682BR Set Screw 7/8-9 X 7/8in Cup Point

Product Description

The VALUE COLLECTION 101682BR is a cup point set screw designed for secure, tamper-resistant fastening in mechanical assemblies and power transmission applications. Manufactured from alloy steel, it delivers the hardness and tensile strength required for holding collars, hubs, pulleys, and gears firmly on shafts. The 7/8-9 UNC thread and 7/8-inch overall length suit medium-to-heavy-duty industrial and commercial installations. Drive engagement is via a 1/2-inch hex key socket, providing reliable torque transfer without an exposed head. Meets ASME/ANSI B18.3 and ASTM F912 standards for dimensional accuracy and mechanical performance.

Cup point set screws are a standard choice wherever a shaft-mounted component must be locked in position against rotational or axial movement. This screw is applicable across a broad range of industrial, HVAC mechanical, and plumbing equipment assemblies — including fan hubs, blower wheel collars, pump impeller shafts, and motor couplings. Machinists, millwrights, and mechanical contractors routinely install this fastener type during equipment assembly, preventive maintenance, or field repair work. Package quantity is 1 piece with a minimum order quantity of 10 pieces.

Key Features

• Cup point tip bites into shaft surface for positive grip and resistance to loosening under vibration
• 7/8-9 UNC thread ensures compatibility with standard inch-series tapped holes in that size range
• Alloy steel construction provides superior hardness and shear strength compared to low-carbon alternatives
• 1/2-inch hex drive accepts standard hex keys and Allen-style bits for easy installation in tight spaces
• Conforms to ASME/ANSI B18.3 and ASTM F912 for consistent dimensional and mechanical quality
• Headless design sits flush or below the surface, eliminating snagging hazards on rotating equipment

Compatibility

Designed for use in any standard 7/8-9 UNC tapped hole requiring a headless cup point set screw per ASME/ANSI B18.3 specifications, typical in shaft collars, hubs, and mechanical couplings across industrial and commercial equipment.

Installation Notes

Installation is performed by machinists, millwrights, or qualified mechanical technicians. Always de-energize and lock out equipment before installing or adjusting set screws on rotating components, following applicable OSHA lockout/tagout procedures. Use a properly sized 1/2-inch hex key to avoid rounding the drive socket; a T-handle or torque-limiting hex driver is recommended for controlled seating. Do not overtighten, as excessive force can shear the screw or damage the shaft surface.