Value Collection 101631BR Set Screw 5/8-11 X 2-1/2 in Cup Point

Product Description

The VALUE COLLECTION 101631BR is a cup point set screw designed for secure shaft-to-hub and collar fastening applications in mechanical assemblies. Manufactured from Grade 8 alloy steel, this screw provides high tensile strength and resistance to loosening under load. It features a 5/8-11 UNC thread form and measures 2.5 inches in overall length. The 5/16-inch hex drive accepts a standard hex key for installation and adjustment. Meets ASME/ANSI B18.3 and ASTM F912 fastener standards. Suitable for use by machinists, maintenance technicians, and mechanical tradespeople working on rotating equipment, set collars, pulleys, and shaft couplings.

This set screw is intended for use in industrial and mechanical maintenance environments where a headless, flush-seating fastener is required. The cup point geometry bites into the mating shaft surface to create a strong holding force without requiring a separate locking mechanism. Typical applications include locking shaft collars, sprockets, gears, and pulleys onto shafts in both light and heavy-duty equipment. This is a sold-per-piece item with a minimum order quantity of 10 pieces.

Key Features

• Grade 8 alloy steel construction for high tensile and shear strength
• Cup point tip bites into shaft surface to resist rotation and axial movement
• 5/8-11 UNC thread for compatibility with standard inch-series tapped holes
• 5/16-inch hex drive accepts standard hex key or Allen wrench
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• Headless design sits flush or below the surface of the mating component

Compatibility

Designed as an OEM-style replacement or maintenance fastener for mechanical assemblies requiring a 5/8-11 UNC headless cup point set screw with a 5/16-inch hex drive.

Installation Notes

Installation is performed by machinists or maintenance technicians using a 5/16-inch hex key. Ensure the tapped hole is clean and free of debris before threading the screw in by hand to avoid cross-threading. De-energize and lock out all equipment before servicing any rotating assembly. Do not exceed the torque capacity appropriate for Grade 8 alloy steel fasteners of this thread size as specified by the equipment manufacturer.