Value Collection 601214PR Set Screw 12-28 X 1/4 in Cup Point

Product Description

The VALUE COLLECTION 601214PR is a cup point set screw designed for mechanical assemblies requiring a secure, low-profile fastener with no protruding head. Threaded 12-28 UNF and measuring 1/4 inch in overall length, this set screw is manufactured from alloy steel to the ASTM F912 material grade standard and conforms to the ASME/ANSI B18.3 fastener specification. The 7/64-inch hex drive allows installation with a standard hex key. Cup point geometry bites into the mating shaft or surface to resist rotation and axial movement under load. Machinists, maintenance technicians, and mechanical assemblers install this type of fastener in collars, pulleys, knobs, and similar components.

This set screw is suited for general industrial and mechanical applications where a headless threaded fastener is required to secure a component to a shaft or in a threaded bore. The fine 28-thread-per-inch UNF pitch provides greater thread engagement and resistance to loosening compared to coarse-thread equivalents, making it appropriate for vibration-prone environments. Typical applications include machine tool assemblies, drive components, and precision mechanical fixtures.

Key Features

• Cup point geometry grips mating shaft surfaces to prevent rotation and axial shift
• 12-28 UNF fine thread pitch for strong thread engagement and vibration resistance
• Alloy steel construction meets ASTM F912 material grade requirements
• Conforms to ASME/ANSI B18.3 dimensional standard for socket set screws
• 7/64-inch hex drive compatible with standard L-key and T-handle hex wrenches
• 1/4-inch overall length suits shallow-bore and thin-hub applications

Compatibility

Designed as a standard ASME/ANSI B18.3 socket set screw for use in any 12-28 UNF threaded bore requiring a cup point headless fastener.

Installation Notes

Installation requires a 7/64-inch hex key; use a properly fitted key to avoid rounding the drive socket. Ensure the mating threaded bore is clean and free of debris before installation. Apply appropriate thread-locking compound if the assembly is subject to sustained vibration. Do not exceed the torque capacity of the alloy steel fastener by using extension bars or excessive leverage on the hex key.