Value Collection 131178PR Set Screw 3/8-16 X 3/4 in Oval Point

Product Description

The VALUE COLLECTION 131178PR is a Grade 8 alloy steel set screw designed for high-strength fastening applications where a flush or recessed installation is required. The oval point tip provides a controlled contact surface that minimizes damage to the mating shaft or surface while maintaining reliable holding force under vibration and torque loads. The 3/16-inch hex drive accepts a standard hex key for installation and removal. This fastener conforms to ASME/ANSI B18.3 and ASTM F912 standards, making it a recognized choice for mechanical assemblies in industrial and trade settings.

This set screw is suited for use in shaft collars, pulleys, sprockets, gears, and similar power-transmission components where a headless fastener is required. The oval point geometry makes it appropriate for applications involving hardened or finished shafts where a cup or cone point would cause unacceptable surface damage. Machinists, millwrights, and mechanical contractors commonly install this type of fastener in rotating machinery and equipment assemblies across residential and commercial settings.

Key Features

• Grade 8 alloy steel construction for high tensile and torsional strength
• Oval point tip reduces shaft surface damage compared to cup or cone point designs
• 3/16-inch hex drive for standard hex key installation
• 3/8-16 UNC thread for broad compatibility with standard tapped bores
• Conforms to ASME/ANSI B18.3 and ASTM F912 fastener standards
• Headless design allows flush seating within the tapped component

Compatibility

Designed as a standard UNC set screw for use in any 3/8-16 tapped bore requiring an oval point, headless fastener per ASME/ANSI B18.3 and ASTM F912 specifications.

Installation Notes

Installation requires a 3/16-inch hex key or hex bit driver. The mating component must have a properly tapped 3/8-16 UNC through-hole or blind hole of adequate depth before installation. Always ensure the assembly is de-energized and rotating components are fully stopped before servicing set screws. Do not exceed the rated tightening torque for Grade 8 alloy steel fasteners of this thread size as specified by current ASME standards.