Value Collection 601235PR Set Screw 1/4-28 X 1-1/2 in Cup Point

Product Description

The VALUE COLLECTION 601235PR is a cup point set screw designed for secure fastening applications in mechanical assemblies. Manufactured from alloy steel, this fastener features a 1/4-28 UNF thread and measures 1-1/2 inches in overall length. It is driven by a 1/8-inch hex key and meets ASME/ANSI B18.3 and ASTM F912 standards. The cup point geometry bites into the mating shaft or surface to resist rotation and axial movement without requiring a through-hole. Machinists, millwrights, and maintenance technicians install these fasteners to lock collars, pulleys, gears, and similar components onto shafts in industrial and mechanical equipment.

This set screw is suited for use in light to medium-duty shaft-locking applications across manufacturing, HVAC equipment assemblies, pump and motor components, and general mechanical maintenance. The 1/4-28 fine thread provides precise engagement and good holding torque in alloy steel hardware applications. It is packaged individually and sold in a minimum order quantity of 100 pieces, making it appropriate for shop stock, production line use, or service fleet inventory.

Key Features

• Cup point geometry bites into shaft surface for reliable axial and rotational locking
• 1/4-28 UNF fine thread for precise engagement and controlled tightening
• 1/8-inch hex drive compatible with standard hex keys and Allen wrenches
• Alloy steel construction provides high tensile strength for demanding fastening applications
• Meets ASME/ANSI B18.3 and ASTM F912 standards for dimensional and material compliance
• Minimum order quantity of 100 pieces suitable for production or shop stock replenishment

Compatibility

Designed as a standard 1/4-28 UNF cup point set screw compatible with any application requiring an ASME/ANSI B18.3 compliant headless hex-drive fastener of this thread size and length.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 1/8-inch hex key or Allen wrench. De-energize and lock out all equipment before servicing any shaft or rotating assembly. Ensure the mating shaft surface is clean and free of debris before seating the cup point to achieve full holding force. Do not exceed the designed tightening range for the fastener grade and thread size.