Value Collection 101587PR Set Screw 1/2-13 X 3 in Cup Point

Product Description

The VALUE COLLECTION 101587PR is a 1/2-13 x 3-inch cup point set screw engineered for secure, reliable fastening in mechanical assemblies. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile strength and resistance to shear forces in demanding industrial and commercial applications. The 1/4-inch hex drive accepts a standard hex key for installation and removal. With a UNC thread standard and an overall length of 3 inches, this set screw conforms to ASME/ANSI B18.3 and ASTM F912 specifications, making it a code-compliant choice for maintenance professionals, millwrights, and industrial contractors who need proven, specification-grade fasteners.

This set screw is suited for use in shaft-to-hub connections, collars, couplings, and similar mechanical assemblies where a cup point is appropriate for biting into a shaft surface and resisting rotational slippage. The 1/2-13 UNC thread size is widely used in medium-to-heavy-duty industrial equipment. Typical installers include maintenance technicians, millwrights, and mechanical contractors working on rotating machinery, conveyor systems, and fabricated equipment assemblies.

Key Features

• Grade 8 alloy steel construction provides high tensile and torsional strength
• Cup point geometry bites into shaft surface for positive rotational locking
• 1/4-inch hex drive for use with standard hex keys or Allen wrenches
• 1/2-13 UNC thread for compatibility with standard tapped holes
• Conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Overall length of 3 inches suits deep-engagement or extended-reach fastening applications

Compatibility

Designed as a standard UNC-threaded set screw for use in any 1/2-13 tapped hole requiring a cup point fastener per ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Installation is performed using a 1/4-inch hex key. Shut down and de-energize all rotating machinery before installing or removing set screws. Ensure the tapped hole is clean and free of debris before threading the fastener. Do not exceed the torque capacity of the alloy steel fastener or the mating component material.