Value Collection 141148PR Set Screw 5/16-18 X 1 in Half Dog

Product Description

The VALUE COLLECTION 141148PR is a half dog point set screw designed for secure, adjustable fastening in mechanical assemblies. Manufactured from Grade 8 alloy steel, this screw provides high tensile strength and hardness suitable for demanding industrial and commercial applications. The 5/16-18 UNC thread and 1-inch overall length make it a standard choice for shaft-to-hub connections and similar clamping tasks. A 5/32-inch hex drive accepts a standard hex key for installation and removal. It meets ASME/ANSI B18.3 and ASTM F912 standards, ensuring dimensional and mechanical conformance.

This set screw is used in mechanical drive applications where a shaft, collar, or component must be held in a fixed axial or rotational position. The half dog point projects slightly beyond the thread engagement zone, seating into a drilled detent or mating recess on the shaft to resist axial movement while still allowing disassembly. Typical applications include motor shafts, conveyor components, couplings, pulleys, and sprocket assemblies across light industrial and heavy commercial equipment. Installation is performed by machinists, millwrights, and maintenance technicians.

Key Features

• Half dog point seats into a drilled recess or detent for reliable axial retention
• Grade 8 alloy steel construction delivers high hardness and tensile strength
• 5/16-18 UNC thread for broad compatibility with standard tapped holes
• 5/32-inch hex drive accepts a standard hex key for easy installation
• Meets ASME/ANSI B18.3 and ASTM F912 for dimensional and mechanical compliance
• 1-inch overall length suits a wide range of clamping depth requirements

Compatibility

Designed as a standard replacement or new-installation set screw for any mechanical assembly using a 5/16-18 UNC tapped hole requiring a half dog point fastener.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician. Ensure the mating shaft or component has a properly drilled detent or flat sized for the half dog point before tightening. Use a calibrated hex key of the correct 5/32-inch size to avoid rounding the drive recess. De-energize and lock out all machinery before servicing any rotating components per applicable OSHA lockout/tagout procedures.