Value Collection 601481BR Set Screw 7/8-9 X 3-1/2 in Cup Point

Product Description

The VALUE COLLECTION 601481BR is a cup point set screw designed for mechanical assemblies requiring a secure, non-protruding fastener. Threaded 7/8-9 UNC and measuring 3-1/2 inches in overall length, this fastener is driven with a 1/2-inch hex key and seats with a cup point that bites into a shaft or mating surface to resist rotation and axial movement. Manufactured from alloy steel to ASTM F912 specifications and conforming to ASME/ANSI B18.3, it delivers the hardness and shear strength required for demanding industrial and mechanical applications. Weighing 0.45 pounds, it is a substantial fastener suited to heavy-duty setscrew applications.

This set screw is used in applications where a shaft, collar, gear, pulley, or similar component must be locked onto a shaft without a protruding fastener head. Common install scenarios include motor shafts, conveyor components, pump couplings, and industrial machinery where axial and rotational retention are required. The cup point style is the most widely used point type for general-purpose clamping. Licensed trades and mechanical assembly technicians working on industrial equipment, HVAC fan assemblies, and power transmission components regularly spec this fastener type.

Key Features

• 7/8-9 UNC thread size for use in standard fractional-inch tapped holes
• 3-1/2 inches overall length provides deep thread engagement for heavy clamping loads
• Cup point design bites into mating surface for positive rotational and axial retention
• Alloy steel construction meets ASTM F912 material grade requirements
• 1/2-inch hex drive conforms to ASME/ANSI B18.3 dimensional standards
• Non-protruding headless design suits assemblies with limited clearance

Compatibility

Designed as an OEM-style replacement or standard-stock set screw for any mechanical assembly requiring a 7/8-9 UNC cup point set screw conforming to ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Installation requires a calibrated 1/2-inch hex key or T-handle hex wrench. Ensure the tapped hole is clean and free of debris before threading. Always de-energize and lock out the equipment before installing or removing set screws on rotating components. Torque to the fastener manufacturer or equipment OEM specification for the given thread size and application.