Value Collection 141166PR Set Screw 3/8-16 X 3/4 in Half Dog

Product Description

The VALUE COLLECTION 141166PR is a half dog point set screw designed for mechanical assemblies where a positive locating or locking action against a shaft or mating component is required. Manufactured from Grade 8 alloy steel, this fastener delivers the high tensile strength and hardness needed for demanding industrial and trade applications. It features a 3/8-16 UNC thread, an overall length of 3/4 inches, and a 3/16-inch internal hex drive. Conforming to ASME/ANSI B18.3 and ASTM F912 standards, it is appropriate for machinists, millwrights, and maintenance technicians working on rotating equipment, collars, pulleys, and shaft assemblies.

This set screw is suited for use in manufacturing, industrial maintenance, and mechanical assembly environments. The half dog point configuration engages a drilled hole or flat on a shaft, providing positive axial retention and resistance to rotation. It is commonly installed in shaft collars, hubs, couplings, and similar components found in both light and heavy-duty mechanical systems. Minimum order quantity is 100 pieces, making this part appropriate for shop stock or production-volume applications.

Key Features

• Half dog point for positive shaft engagement in drilled locating holes
• Grade 8 alloy steel construction for high tensile and hardness requirements
• 3/8-16 UNC thread ensures broad compatibility with standard tapped holes
• 3/16-inch hex drive accepts standard Allen or hex key tooling
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as a standard UNC threaded set screw for use in any mechanical assembly requiring a 3/8-16 tapped hole and a half dog point fastener per ASME/ANSI B18.3.

Installation Notes

Installation requires a 3/16-inch hex key or Allen wrench. Ensure the mating shaft has a properly drilled and deburred locating hole sized for the half dog point before seating the screw. De-energize and lock out all rotating equipment before servicing shaft assemblies. Torque to values specified by the equipment manufacturer for Grade 8 alloy steel fasteners of this thread size.