Value Collection 151028PR Set Screw 5-40 X 1/4 in Flat Point

Product Description

The VALUE COLLECTION 151028PR is a #5-40 UNC flat point set screw designed for securing components without protruding hardware. Machined from Grade 8 alloy steel, this fastener delivers high tensile strength for demanding clamping and locking applications. It measures 1/4 inch in overall length and is driven with a 1/16 inch hex key. Manufactured to ASME/ANSI B18.3 and ASTM F912 standards, it meets the dimensional and mechanical requirements expected in precision assemblies. Machinists, maintenance technicians, and industrial assemblers use this screw where a flush or recessed seating surface is required.

This flat point set screw is suited for use in collars, pulleys, gears, and similar mechanical components where the fastener must bear against a flat surface or a pre-machined seat on a shaft. The flat point distributes load across a wider contact area compared to cup or cone point styles, reducing shaft marking in applications where repositioning may be needed. Typical environments include light machinery, instrumentation, and precision mechanical assemblies requiring small-diameter fasteners.

Key Features

• Thread size #5-40 UNC for fine-pitch, small-diameter fastening applications
• Flat point design reduces shaft damage and suits flat-seat or repositionable installations
• Grade 8 alloy steel construction provides high tensile and torsional strength
• 1/16 inch hex drive for use with standard Allen or hex key tools
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Compact 1/4 inch overall length suits space-constrained assemblies

Compatibility

Designed as an OEM-style or aftermarket replacement set screw for mechanical assemblies requiring a #5-40 UNC thread, flat point style, and 1/4 inch length in alloy steel construction.

Installation Notes

Installation is performed by machinists or maintenance technicians using a 1/16 inch hex key. Ensure the mating threaded hole is clean and free of debris before installation. Do not exceed the torque capacity of the small hex socket, as over-driving can strip the drive recess. Always de-energize or lock out machinery before adjusting or replacing set screws in rotating assemblies per applicable OSHA lockout/tagout procedures.