Value Collection 603427BR Set Screw 5/8-11 X 1-1/4 in Flat Point

Product Description

The VALUE COLLECTION 603427BR is a 5/8-11 UNC flat point set screw manufactured from Grade 8 alloy steel. Set screws are headless fasteners used to secure a component — such as a collar, gear, or pulley — against a shaft by direct point-to-shaft contact. The flat point distributes load across a broad contact area, making it well suited for applications where shaft marring must be minimized. Drive is a 5/16-inch hex socket (allen), and the fastener is manufactured to ASME/ANSI B18.3 and ASTM F912 standards. Overall length is 1-1/4 inches. Grade 8 alloy steel provides high tensile and torsional strength for demanding industrial and mechanical applications.

This set screw is used across a wide range of industrial, mechanical, and maintenance applications wherever a headless fastener is required for shaft-to-hub locking or component positioning. Typical installations include machine shafts, conveyor components, HVAC drive assemblies, motor pulleys, and general mechanical assemblies requiring a flush or sub-flush fastener profile. The UNC thread form is standard in North American trade and industrial settings. The flat point design is appropriate where repeated adjustment or repositioning is anticipated.

Key Features

• 5/8-11 UNC thread form — standard North American coarse thread
• Flat point contact for reduced shaft damage during adjustment
• 5/16-inch hex socket drive — compatible with standard allen keys and hex drivers
• Grade 8 alloy steel construction for high tensile and torsional strength
• Meets ASME/ANSI B18.3 and ASTM F912 standards
• Overall length of 1-1/4 inches with fractional inch dimensioning

Compatibility

Designed as a standard replacement or stock set screw for any application requiring a 5/8-11 UNC flat point set screw with a 5/16-inch hex drive and 1-1/4-inch overall length conforming to ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Installation is performed by machinists, millwrights, or mechanical technicians using a 5/16-inch hex key or allen driver. Always de-energize and lock out equipment before servicing any rotating assembly. Torque to the value specified by the equipment manufacturer for the shaft diameter and application. Inspect threads for damage before installation and ensure the mating threaded hole is clean and free of debris.