Value Collection 601059PR Set Screw 3-48 X 1/2 in Cup Point

Product Description

The VALUE COLLECTION 601059PR is a cup point set screw designed for secure, tool-free surface contact in tight mechanical assemblies. Sized at 3-48 UNC thread with an overall length of 0.5 inches, this screw is driven by a 0.050-inch hex key and is manufactured from alloy steel for high holding strength and resistance to deformation under load. It meets ASME/ANSI B18.3 and ASTM F912 standards. Machinists, maintenance technicians, and assembly professionals use this fastener to lock components such as collars, gears, and pulleys onto shafts without a protruding head.

The 601059PR is suited for light-duty precision assemblies where a small-diameter, fine-thread set screw is required. The cup point geometry bites into the mating surface to resist rotational and axial movement, making it appropriate for low-vibration mechanical and electromechanical applications. This screw is commonly installed in instrument housings, small motor assemblies, and machine tool fixtures where space is at a premium and a flush or recessed fastener is necessary. It is sold individually but requires a minimum order of 100 pieces per purchase.

Key Features

• Cup point geometry provides positive bite into mating shaft or surface to resist rotation and axial shift
• 3-48 UNC thread standard for compatibility with fine-thread precision assemblies
• Alloy steel construction delivers high hardness and shear resistance relative to fastener size
• 0.050-inch hex key drive allows installation in confined spaces with standard hex wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards
• Headless design sits flush or below the mating surface, eliminating snag points

Compatibility

Designed as an OEM-style replacement or standard stocking fastener for precision mechanical assemblies requiring a 3-48 UNC cup point set screw with a hex drive.

Installation Notes

Installation is performed by machinists or mechanical assembly technicians using a 0.050-inch hex key or appropriate L-wrench. Ensure the mating shaft or component surface is clean and free of debris before driving the screw. Do not exceed the rated hex key torque for this fastener diameter, as over-torquing a small-diameter alloy screw can cause thread stripping or screw shear. Follow applicable machine guarding and lockout/tagout procedures before accessing any rotating assembly.