Value Collection 141184PR Set Screw 1/2-13 X 5/8 in Half Dog

Product Description

The VALUE COLLECTION 141184PR is a half dog point set screw designed for secure, no-protrusion clamping and positioning applications in mechanical assemblies. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile strength and resistance to shear forces in demanding industrial and trade environments. The half dog point provides a short cylindrical tip that locates into a mating hole or groove, preventing axial movement of shafts, collars, and hubs. Drive engagement is through a 1/4-inch hex socket, compatible with standard hex keys and Allen wrenches. This screw is sized 1/2-13 UNC thread by 5/8 inches overall length.

This set screw is suited for use in shaft-to-hub connections, shaft collars, gear hubs, pulleys, and mechanical couplings across industrial, HVAC, and mechanical trade applications. The half dog point configuration is typically chosen when a mating detent hole is present, providing positive radial location. Licensed millwrights, pipefitters, HVAC technicians, and maintenance mechanics commonly install this fastener in rotating or sliding shaft assemblies where positive positioning is required.

Key Features

• Half dog point tip locates positively into drilled detent holes for reliable shaft positioning
• Grade 8 alloy steel construction provides high tensile and shear strength
• 1/2-13 UNC thread form for broad compatibility with standard tapped holes
• 1/4-inch hex drive for use with standard hex keys or Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• 5/8-inch overall length suits medium-depth engagement applications

Compatibility

Designed as an OEM-style replacement or standard installation fastener for any tapped 1/2-13 UNC threaded bore requiring a half dog point set screw in shaft collar, hub, coupling, or positioning assembly applications.

Installation Notes

Installation is performed by threading the set screw into a pre-tapped 1/2-13 UNC hole using a 1/4-inch hex key. Always de-energize and lock out rotating equipment before installing or removing set screws in shaft assemblies. A mating detent hole in the shaft is required for proper half dog point engagement. Refer to applicable machinery safety standards and torque guidelines from the assembly manufacturer for final tightening procedure.