Value Collection 601540BR Set Screw 1-14x3in Cup Point

Product Description

The VALUE COLLECTION 601540BR is a cup point set screw designed for mechanical assemblies where a recessed, headless fastener is required to secure a component to a shaft or within a bore. This screw features a 1-14 UNF thread — a large-diameter, fine-pitch configuration — with an overall length of 3 inches. The cup point geometry creates a circular bite into mating surfaces, providing a firm hold with reduced risk of the fastener backing out under vibration. Manufactured from alloy steel to the ASTM F912 material grade, this fastener is suited for demanding mechanical environments. Drive is 9/16-inch hex, requiring a matching hex key for installation and removal.

This set screw is used in industrial and mechanical service applications where large-diameter shaft retention is needed. Common scenarios include locking collars, pulleys, gears, and couplings to shafts in machinery, pumps, and drive assemblies. The fine UNF thread pitch provides precise axial positioning. This fastener is dimensioned to the ASME/ANSI B18.3 standard, making it a direct drop-in for engineered assemblies calling out that specification. Millwrights, machinists, and mechanical tradespeople are the typical installers in both OEM production and field-service contexts.

Key Features

• 1-14 UNF thread — large-diameter fine-pitch for precise positioning and strong engagement
• 3-inch overall length for deep engagement in thick hubs or collars
• Cup point geometry bites into shaft surface to resist rotation and axial movement
• Alloy steel construction, ASTM F912 material grade, for high tensile and torsional strength
• 9/16-inch hex drive for standard hex key installation
• Conforms to ASME/ANSI B18.3 and ASTM F912 fastener standards

Compatibility

Designed as an OEM-style replacement or service fastener for mechanical assemblies specifying a 1-14 UNF cup point set screw per ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Installation is performed by millwrights or mechanical technicians using a 9/16-inch hex key. De-energize and lock out all rotating equipment before installing or removing set screws. Thread the fastener in by hand first to confirm thread engagement before applying torque, and inspect mating threads for damage or contamination prior to assembly. Do not use impact drivers on fine-pitch set screws, as thread stripping can result.