Value Collection 111007PR Set Screw 4-40 X 3/16 in Grade 8

Product Description

The VALUE COLLECTION 111007PR is a Grade 8 alloy steel set screw with a knurled cup point, designed for secure, low-profile fastening applications where a flush or recessed connection is required. Measuring 4-40 thread size by 3/16 inches in overall length, this fastener uses a hex drive (0.050-inch hex key) and conforms to ASME/ANSI B18.3 and ASTM F912 standards. The knurled cup point bites into the mating surface to resist rotation and axial movement without the need for a protruding head. Machinists, maintenance technicians, and assembly professionals use this type of fastener in precision mechanical assemblies.

This set screw is suited for light-duty mechanical assemblies where a headless fastener is required to lock a component such as a collar, gear, pulley, or hub onto a shaft. The UNC thread standard and fractional-inch dimensioning make it compatible with standard inch-series tapped holes. It is commonly used in both industrial equipment and field maintenance applications where compact fastener profiles are needed.

Key Features

• Knurled cup point grips mating surface to prevent rotation and axial movement
• Grade 8 alloy steel construction for high strength in compact fastener form
• Hex drive requires a 0.050-inch hex key for installation and removal
• Conforms to ASME/ANSI B18.3 and ASTM F912 standards
• UNC thread standard ensures compatibility with standard inch-series tapped holes
• Headless design allows flush or below-surface installation

Compatibility

Designed as a standard inch-series set screw for use in any tapped 4-40 UNC threaded hole requiring a headless, cup-point fastener per ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Installation requires a 0.050-inch hex key; ensure the correct key size is used to avoid stripping the drive socket. Power down and de-energize any equipment before servicing components secured by set screws. Verify the mating tapped hole is clean and free of debris before threading the fastener in. Do not exceed the torque capacity of the Grade 8 alloy steel by using oversized or improvised tools.