Value Collection 151349PR Set Screw 1/2-13x1 Flat Point

Product Description

The VALUE COLLECTION 151349PR is a Grade 8 alloy steel set screw with a flat point, designed for secure shaft-to-hub and collar locking applications in mechanical and industrial assemblies. Threaded 1/2-13 UNC and measuring 1 inch in overall length, this fastener is driven with a 1/4-inch hex key and meets ASME/ANSI B18.3 and ASTM F912 standards. The flat point style distributes holding force evenly across the mating surface without marring softer shaft material, making it a reliable choice where frequent adjustment or removal is anticipated. Installed by machinists, millwrights, and maintenance technicians across a wide range of industrial and OEM applications.

This set screw is suited for use in mechanical power transmission components including shaft collars, shaft couplings, pulleys, gears, and sprockets where a flush or recessed fastener is required. Its UNC thread form is compatible with standard tapped holes in both ferrous and non-ferrous assemblies. The Grade 8 alloy steel construction provides high tensile strength for demanding load conditions found in manufacturing, HVAC equipment assemblies, and general mechanical maintenance environments.

Key Features

• Grade 8 alloy steel construction for high tensile strength and durability
• Flat point style prevents shaft marring and allows for frequent repositioning
• 1/2-13 UNC thread form for compatibility with standard tapped holes
• 1/4-inch hex drive for use with standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• Fractional inch measurement type for straightforward fitment verification

Compatibility

Designed as an OEM-style replacement or maintenance fastener for any standard 1/2-13 UNC tapped shaft collar, coupling, or mechanical assembly requiring a flat point set screw per ASME/ANSI B18.3 specifications.

Installation Notes

Installation is typically performed by a machinist, millwright, or qualified maintenance technician. De-energize and lock out all rotating equipment before installing or removing set screws per OSHA lockout/tagout requirements. Use a calibrated 1/4-inch hex key to drive the fastener; do not use worn or undersized keys, as this risks rounding the drive socket. Thread engagement should be verified before applying final torque to ensure full thread contact.