Value Collection 131181PR Set Screw 3/8-16 X 1 in Oval Point Grade 8

Product Description

The VALUE COLLECTION 131181PR is a Grade 8 alloy steel set screw designed for high-load fastening applications where a flush or recessed installation is required. This screw features a 3/8-16 UNC thread and measures 1 inch in overall length. The oval point provides a self-centering contact surface that reduces damage to the mating shaft or workpiece compared to a cup or flat point. Drive is via a 3/16-inch hex key socket. It meets ASME/ANSI B18.3 and ASTM F912 standards. Machinists, millwrights, and maintenance technicians regularly spec this fastener for shaft collars, pulleys, and mechanical assemblies in industrial and commercial settings.

This set screw is suited for applications where a permanently seated or semi-permanent shaft-to-hub connection is needed. The oval point is preferred when the mating surface requires a rounded point contact to minimize surface marring while still transferring axial and rotational loads. Typical installations include motor shaft collars, gear hubs, handwheels, and similar rotating or sliding mechanical components. The Grade 8 alloy steel construction handles elevated clamping torque and vibration environments that would cause lower-grade fasteners to loosen or deform.

Key Features

• Grade 8 alloy steel construction for high tensile strength and resistance to deformation under load
• Oval point design provides self-centering contact and reduces shaft surface damage compared to cup or flat point styles
• 3/16-inch hex key drive for precise torque application with standard hex wrenches or L-keys
• 3/8-16 UNC thread for broad compatibility with standard tapped holes in inch-dimensioned components
• Meets ASME/ANSI B18.3 and ASTM F912 standards for dimensional and mechanical consistency

Compatibility

Designed as an OEM-style or aftermarket replacement set screw for any application requiring a 3/8-16 UNC threaded, 1-inch overall length oval point set screw driven by a 3/16-inch hex key.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 3/16-inch hex key or Allen wrench. De-energize and lock out any rotating equipment before installing or removing set screws in shaft assemblies per applicable OSHA lockout/tagout procedures. Ensure the tapped hole is clean and free of debris before threading the screw in. Do not exceed the recommended seating torque for 3/8-16 Grade 8 set screws as specified by the equipment manufacturer or applicable fastener torque tables.