Value Collection 601397BR Set Screw 5/8-11 X 3-1/2 in Cup Point

Product Description

The VALUE COLLECTION 601397BR is a cup point set screw designed for mechanical assemblies requiring a secure, non-projecting fastener. Sized at 5/8-11 UNC thread with an overall length of 3-1/2 inches, this set screw is driven by a 5/16-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, it delivers the hardness and shear strength needed in demanding industrial and mechanical applications. It meets ASME/ANSI B18.3 and ASTM F912 standards, confirming dimensional and material compliance for professional-grade use.

This set screw is used in shaft-to-hub connections, collars, pulleys, sprockets, gears, and similar mechanical assemblies across industrial, HVAC, and general manufacturing environments. The cup point configuration is the most widely used point style for permanent or semi-permanent installations where the point is intended to indent the mating surface. Licensed machinists, millwrights, and maintenance technicians install this type of fastener in applications where a low-profile, flush-seated screw is required.

Key Features

• 5/8-11 UNC thread for compatibility with standard inch-series tapped holes
• 3-1/2 inch overall length suits deep engagement applications
• Cup point geometry indents mating shaft surface for strong axial and rotational hold
• Alloy steel construction provides high hardness and tensile strength
• 5/16-inch hex drive accepts standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as an OEM-style replacement or direct-use fastener for standard 5/8-11 UNC tapped holes in shaft collars, hubs, pulleys, and similar mechanical components requiring a cup point set screw.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians using a 5/16-inch hex key. Ensure the tapped hole is clean and free of debris before installation, and verify thread engagement depth is appropriate for the load. Do not exceed the rated torque for the thread size and material class. Applying a thread-locking compound is common practice when vibration is present in the assembly.