Value Collection 141178PR Set Screw 1/2-13 X 1/2 in Half Dog

Product Description

The VALUE COLLECTION 141178PR is a half dog point set screw designed for mechanical assemblies requiring precise shaft or component positioning. Manufactured from Grade 8 alloy steel, it delivers high tensile strength and resistance to shear forces in demanding industrial and mechanical applications. The screw measures 1/2-13 thread size by 1/2 inch overall length and is driven with a 1/4-inch hex key. It conforms to ASME/ANSI B18.3 and ASTM F912 standards, making it a reliable choice for engineers and maintenance technicians working to specification.

This set screw is used in shaft collars, couplings, pulleys, gears, and similar mechanical components where the half dog point engages a drilled socket or locating hole to prevent rotation or axial movement. It is suited for light industrial machinery, manufacturing equipment, and maintenance applications across mechanical, HVAC, and general trade environments. Minimum order quantity is 10 pieces.

Key Features

• Half dog point engages drilled sockets for positive location and anti-rotation
• Grade 8 alloy steel construction for high tensile and shear strength
• 1/2-13 UNC thread for broad compatibility with standard tapped holes
• 1/4-inch hex drive for use with standard Allen or hex key tooling
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards
• Fractional inch sizing for use in standard inch-dimensioned assemblies

Compatibility

Designed as an OEM-style replacement or standard-service fastener for mechanical assemblies using 1/2-13 UNC tapped set screw seats with half dog point engagement.

Installation Notes

Installation is typically performed by mechanical technicians or millwrights using a 1/4-inch hex key or Allen wrench. De-energize and lock out all rotating or powered equipment before installing or removing set screws. Thread engagement should be verified before torquing to avoid cross-threading. Do not substitute a shorter or longer screw where overall engagement length is specified by the equipment manufacturer.