Value Collection 141082PR Set Screw 1/4-20 X 5/16 in Half Dog

Product Description

The VALUE COLLECTION 141082PR is a half dog point set screw designed for mechanical assemblies where a controlled engagement point is needed to locate or retain a mating component. Threaded 1/4-20 UNC with an overall length of 5/16 inches, this fastener is manufactured from Grade 8 alloy steel for high tensile and torsional strength. The 1/8-inch internal hex drive accepts a standard hex key for installation in confined spaces. It conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and material standards.

Half dog point set screws are commonly used in shaft-to-hub connections, indexing mechanisms, and positioning applications where the dog point registers into a mating hole or slot to prevent axial movement. This screw is suited for use in industrial equipment, machine tools, motors, and drive assemblies. Installation is performed by machinists, millwrights, and maintenance technicians working on rotating or sliding shaft assemblies.

Key Features

• 1/4-20 UNC thread form for broad compatibility with standard tapped holes
• Half dog point provides a reduced-diameter pilot for locating into a mating hole or slot
• Grade 8 alloy steel construction delivers high clamp load and resistance to shear forces
• 1/8-inch hex drive allows installation with a standard hex key or Allen wrench
• Meets ASME/ANSI B18.3 and ASTM F912 standards for dimensional and mechanical properties
• Fractional inch sizing for use in inch-standard mechanical assemblies

Compatibility

Designed as an OEM-style replacement or stock fastener for any application requiring a 1/4-20 UNC half dog point set screw with a 5/16-inch overall length and 1/8-inch hex drive.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 1/8-inch hex key. Ensure the tapped hole is clean and free of debris before driving the screw to the specified engagement depth. Apply appropriate thread-locking compound per the equipment manufacturer's requirements to prevent loosening under vibration. Always de-energize and lock out rotating machinery before servicing any shaft or hub fasteners.