Value Collection 601282PR Set Screw 3/8-16 X 4 in

Product Description

The VALUE COLLECTION 601282PR is a cup point set screw designed for mechanical fastening applications where a headless, flush-mount screw is required to secure a component onto a shaft or within a bore. Manufactured from alloy steel, this screw measures 3/8-16 thread size with an overall length of 4 inches. Drive engagement is via a 3/16-inch hex key. The cup point geometry bites into the mating surface to resist rotational and axial movement without requiring an additional locking feature. Machinists, millwrights, and industrial maintenance technicians are the typical installers.

This set screw is suited for use in mechanical assemblies such as shaft collars, shaft couplings, pulleys, gears, and sprockets where the fastener must sit flush or below the surface of the host component. The 3/8-16 UNC thread pitch and 4-inch length make it appropriate for thicker hubs or deep-engagement applications. It meets ASME/ANSI B18.3 and ASTM F912 standards, making it compliant with widely accepted fastener specifications used in industrial and commercial mechanical systems.

Key Features

• Cup point geometry creates a biting grip on the mating shaft surface to resist movement under load
• Alloy steel construction provides high tensile and torsional strength for demanding mechanical applications
• 3/16-inch hex drive accepts standard hex keys and hex-driver bits for controlled tightening
• 3/8-16 UNC thread standard ensures broad compatibility with tapped holes and threaded inserts to that specification
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• Headless design allows the screw to sit fully recessed within the host component

Compatibility

Designed as an OEM-style replacement or direct-use set screw for any application requiring a 3/8-16 UNC thread, 4-inch overall length, cup point, alloy steel set screw conforming to ASME/ANSI B18.3 and ASTM F912 standards.

Installation Notes

Installation is typically performed by a machinist or millwright using a 3/16-inch hex key or T-handle hex driver. Ensure the threaded bore is clean and free of debris before installation. De-energize and lock out any rotating equipment before inserting or removing set screws from shaft-mounted components. Do not exceed the torque capacity of the hex drive recess to avoid rounding the socket.