Value Collection MP40413 Set Screw 1/2-13 Cup Point Grade 8

Product Description

The VALUE COLLECTION MP40413 is a cup point set screw designed for mechanical assemblies where a fastener must bear against a shaft or mating surface without a protruding head. Threaded 1/2-13 UNC with an overall length of 1/2 inch, this screw is driven with a 1/4 inch hex key and meets ASME/ANSI B18.3 and ASTM F912 standards. Manufactured from alloy steel to Grade 8 specifications, it delivers high tensile strength suitable for demanding industrial and mechanical applications. The cup point geometry bites into the mating surface to resist axial and rotational movement under load.

This set screw is used in collars, hubs, pulleys, gears, and similar mechanical components where the fastener must secure a part to a shaft. It is appropriate for general industrial machinery, HVAC equipment assemblies, pump drives, and other mechanical drive systems. Installation is typically performed by maintenance technicians and millwrights during assembly or field repair work. The package quantity is 10 pieces per pack.

Key Features

• Cup point geometry grips mating shaft surface to resist rotation and axial shift
• Grade 8 alloy steel construction for high tensile and proof load strength
• 1/2-13 UNC thread for compatibility with standard inch-series tapped holes
• Driven with a 1/4 inch hex key — no external wrench needed
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• Sold in packs of 10 with a minimum order quantity of 1 pack

Compatibility

Designed as an OEM-style replacement or service stock set screw for mechanical assemblies using 1/2-13 UNC tapped holes requiring a cup point, headless hex-drive fastener.

Installation Notes

Installation is performed by qualified mechanics, millwrights, or maintenance technicians. De-energize all rotating equipment and lock out or tag out power sources before servicing any shaft-mounted components. Use a properly sized 1/4 inch hex key to avoid rounding the drive socket. Verify thread engagement depth and torque to the assembly specification provided by the equipment manufacturer.