Value Collection 151334PR Set Screw 1/2-13 X 3/8 in Flat Point

Product Description

The VALUE COLLECTION 151334PR is a Grade 8 alloy steel set screw designed for high-strength clamping and locking applications in mechanical assemblies. Sized at 1/2-13 UNC thread with a 3/8-inch overall length, this flat-point set screw is driven by a 1/4-inch hex key. The flat point distributes clamping force over a surface without marring or indenting the contact area, making it a reliable choice for securing shafts, collars, and hubs where a clean contact interface is required. Manufactured to ASME/ANSI B18.3 and ASTM F912 standards, it is suited for use by machinists, maintenance technicians, and millwrights working in industrial and commercial environments.

This set screw is used in applications requiring a fully threaded, headless fastener that sits flush or below the surface of a mating component. Typical installations include shaft-to-collar locking, set collars on rotating equipment, fixture assemblies, and general mechanical fastening tasks where a protruding fastener head is not acceptable. The 1/2-13 UNC thread size is a commonly specified coarse-thread dimension in general industrial and OEM mechanical assemblies.

Key Features

• Grade 8 alloy steel construction for high tensile and torsional strength
• Flat point design distributes clamping load without surface indentation
• 1/2-13 UNC coarse thread for broad compatibility in standard threaded bores
• 1/4-inch hex drive accepts standard hex keys and T-handle drivers
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Headless design allows flush or sub-flush installation in mating components

Compatibility

Designed as a standard 1/2-13 UNC flat-point set screw for use in any threaded bore or collar conforming to ASME/ANSI B18.3 specifications for socket set screws.

Installation Notes

Installation requires a 1/4-inch hex key or Allen driver; ensure the driver is fully seated before applying torque to avoid rounding the socket. Degrease the threaded bore and screw threads before installation when thread-locking compound is specified by the equipment manufacturer. Always de-energize and lock out rotating equipment before servicing shaft collars or set-screw-secured components. Follow applicable machinery safety codes and equipment OEM specifications for installation procedures.