Value Collection 601388PR Set Screw 9/16-18 X 1-1/2 in Cup Point

Product Description

The VALUE COLLECTION 601388PR is a cup point set screw intended for industrial and mechanical fastening applications. It features a 9/16-18 UNF thread and measures 1-1/2 inches in overall length. The cup point geometry bites into the mating surface to resist rotation and axial movement under load. Drive is a 1/4-inch hex socket, which accepts a standard hex key or Allen wrench. The fastener is manufactured from alloy steel to ASTM F912 and conforms to ASME/ANSI B18.3 dimensional standards. Installation requires a 1/4-inch hex key. Suitable for set screw applications in shafts, collars, pulleys, and similar assemblies in mechanical and industrial settings.

This set screw is used in mechanical power transmission and general industrial assembly work. Typical applications include locking hubs, collars, and pulleys onto shafts where a flush or below-surface installation is required. The cup point provides positive grip on hardened and soft shaft materials alike. It is commonly installed by machinists, millwrights, and maintenance technicians during equipment assembly or repair. The 9/16-18 fine thread pitch offers precise engagement and good vibration resistance in dynamic applications.

Key Features

• Cup point tip bites into shaft surface to resist rotation and axial movement
• 9/16-18 UNF fine thread for precise engagement and vibration resistance
• 1/4-inch hex socket drive compatible with standard Allen keys
• Alloy steel construction meets ASTM F912 material grade requirements
• Conforms to ASME/ANSI B18.3 dimensional standards
• 1-1/2 inches overall length suits deep shaft collar applications

Compatibility

Designed as a standard replacement or stocking set screw for mechanical assemblies requiring a 9/16-18 UNF cup point fastener conforming to ASME/ANSI B18.3 and ASTM F912 specifications.

Installation Notes

Installation requires a calibrated 1/4-inch hex key. De-energize and lock out all associated machinery before installing or adjusting set screws in rotating components. Do not overtighten to the point of fastener or shaft deformation; follow equipment manufacturer torque guidelines where available. Ensure mating shaft and collar threads are clean and free of debris before engagement.