Value Collection 111401PR Set Screw 3/8-16 X 1 in Grade 8

Product Description

The VALUE COLLECTION 111401PR is a 3/8-16 x 1 inch knurled cup point set screw manufactured from Grade 8 alloy steel. Set screws of this type are fully threaded, headless fasteners used to lock a component — such as a collar, pulley, gear, or sprocket — against a shaft. The knurled cup point bites into the mating surface for added holding power without requiring an adhesive. Drive is a 3/16 inch hex (Allen) socket. This screw conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and material standards. Minimum order quantity is 100 pieces. Machinists, millwrights, and mechanical contractors are the typical installers.

This set screw is suited for general industrial and mechanical applications where a positive shaft-to-hub connection is required. Common install scenarios include rotating equipment, conveyor assemblies, motor shaft collars, and similar power-transmission hardware. The UNC (Unified National Coarse) thread form ensures broad compatibility with standard tapped holes in steel, cast iron, and aluminum hubs. The Grade 8 alloy steel construction handles higher-torque and higher-load applications compared to lower-grade fasteners.

Key Features

• Knurled cup point increases surface grip on shaft material without slipping
• Grade 8 alloy steel provides high tensile and proof-load strength
• 3/16 inch hex drive accepts standard hex keys and Allen wrenches
• UNC thread form (3/8-16) for compatibility with standard tapped holes
• Meets ASME/ANSI B18.3 and ASTM F912 standards for dimensional accuracy and material properties
• Headless design sits flush or below the hub surface when installed

Compatibility

Designed as a standard UNC threaded set screw for use in any 3/8-16 tapped hole requiring a knurled cup point, headless fastener in mechanical and industrial assemblies.

Installation Notes

Installation is typically performed by machinists or millwrights using a 3/16 inch hex key or T-handle Allen wrench. De-energize and lock out all rotating equipment before installing or replacing set screws. Do not reuse set screws that show deformation at the cup point, as reduced holding force may result. Follow applicable ASME or equipment-manufacturer torque guidelines for the fastener size and grade.