Value Collection 151248PR Set Screw 1/4-28 X 1/4 in Flat Point

Product Description

The VALUE COLLECTION 151248PR is a 1/4-28 UNF flat point set screw machined 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 pressure. The flat point distributes clamping force across the contact surface without marring the shaft, making it suitable for applications where the shaft must remain undamaged. Driven by a 1/8-inch hex key, this screw meets ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards. Overall length is 1/4 inch.

This set screw is used across mechanical, industrial, and trade applications wherever a hardened, fine-thread fastener is needed to lock rotating or sliding components onto a shaft. Typical installations include motor couplings, shaft collars, adjustment mechanisms, and HVAC blower wheel hubs. The 1/4-28 UNF fine thread provides strong clamping torque retention in tight-tolerance assemblies. Minimum order quantity is 100 pieces, making this item suited for shop stock, maintenance departments, and production environments that consume fasteners in volume.

Key Features

• Grade 8 alloy steel construction for high tensile and proof load strength
• Flat point design prevents shaft marring while maintaining firm contact
• 1/4-28 UNF fine thread for strong clamping force retention
• 1/8-inch hex drive; standard hex key installation
• Conforms to ASME/ANSI B18.3 and ASTM F912 standards
• Overall length: 1/4 inch

Compatibility

Designed as an OEM-style replacement or shop-stock fastener for any 1/4-28 UNF threaded set screw application requiring a flat point, Grade 8 alloy steel fastener per ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Set screws of this type are installed by machinists, millwrights, and HVAC or mechanical technicians using a 1/8-inch hex key. Always de-energize and lock out rotating equipment before servicing any shaft-mounted component. Apply appropriate thread-locking compound if vibration is a concern in the application. Do not overtighten; consult assembly torque specifications for the host component before installation.