Value Collection 601477BR Set Screw 7/8-9 X 1-3/4 in Cup Point

Product Description

The VALUE COLLECTION 601477BR is a cup point set screw designed for industrial and mechanical fastening applications. It features a 7/8-9 UNC thread and measures 1-3/4 inches in overall length. Manufactured from alloy steel to the ASTM F912 material grade, this fastener meets the ASME/ANSI B18.3 dimensional standard. The cup point geometry bites into the mating surface to resist rotation and axial movement, making it well-suited for securing collars, hubs, and pulleys to shafts. Installation requires a 1/2-inch hex key. At 0.01 pounds, this is a compact, high-strength fastener for demanding mechanical assemblies.

This set screw is used in mechanical, industrial, and maintenance applications where a flush or recessed fastener is required to lock a component onto a shaft or into a housing. Typical install scenarios include motor shaft collars, gear hubs, sprockets, and similar rotating or stationary assemblies. It is suited for both original equipment assembly and field repair work performed by millwrights, maintenance technicians, and mechanical contractors working with fractional-inch UNC threaded components.

Key Features

• Cup point geometry grips mating shaft surface to resist axial and rotational movement
• 7/8-9 UNC thread for broad compatibility with fractional-inch threaded applications
• 1-3/4 inches overall length for adequate thread engagement in standard hub depths
• Alloy steel construction rated to ASTM F912 for high tensile and torsional strength
• 1/2-inch hex drive recess accommodates standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 dimensional standard for consistent fit and interchangeability

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for mechanical assemblies requiring a 7/8-9 UNC cup point set screw conforming to ASME/ANSI B18.3 and ASTM F912 specifications.

Installation Notes

Installation is performed by millwrights, maintenance technicians, or mechanical contractors using a calibrated hex key or Allen wrench sized at 1/2 inch. Ensure the mating shaft or housing bore is clean and free of debris before seating the fastener. De-energize and lock out any associated rotating equipment before installing or removing set screws. Do not exceed the rated drive torque for the fastener grade, and verify thread engagement meets the requirements of the assembly design.