Value Collection 409094PS Cup Point Set Screw 1/2-13x3/4

Product Description

The VALUE COLLECTION 409094PS is a cup point set screw designed for secure, tool-free-removal fastening in mechanical assemblies. Manufactured from Grade 2 steel with a bright uncoated finish, this fastener features a 1/2-13 UNC thread and a 3/4-inch length measured under the head. The square drive recess provides positive torque transfer and reduces the risk of cam-out during installation. Cup point geometry bites into the mating surface to resist rotational and axial movement, making it well suited for shaft collars, pulleys, sprockets, and similar rotating or sliding components. Machinists, maintenance technicians, and mechanical trades installers will find this a straightforward, industry-standard fastener.

This set screw is used in light to medium-duty mechanical applications where a headless fastener must seat flush or below a surface. Common applications include shaft-to-hub locking on motors, conveyor components, and gearboxes in both residential and commercial equipment. The UNC thread form is the standard for most inch-series mechanical assemblies, ensuring broad compatibility with tapped holes across a wide range of manufactured parts. Sold individually per package with a minimum order quantity of 50 pieces.

Key Features

• Cup point geometry bites into mating shaft surface for firm axial and rotational hold
• Square drive recess delivers positive torque engagement and resists cam-out
• 1/2-13 UNC thread form matches standard inch-series tapped holes
• Grade 2 steel construction provides adequate strength for light to medium mechanical loads
• Bright uncoated finish — suitable for dry or lightly lubricated indoor environments
• Headless design allows full flush or below-surface seating

Compatibility

Designed as a standard replacement or stock fastener for any mechanical assembly requiring a 1/2-13 UNC cup point set screw with a 3/4-inch thread engagement length.

Installation Notes

Installation requires a square drive key or wrench sized to match the socket recess. De-energize and lock out any equipment before accessing rotating shafts or assemblies. Verify the tapped hole is clean and free of debris before threading the screw. Do not exceed the rated load for Grade 2 steel — consult engineering data if higher clamp force is required and consider a higher-grade fastener for critical applications.