Value Collection -40422-1 Set Screw 1/2-13 X 2-1/2 in Grade 8

Product Description

The VALUE COLLECTION -40422-1 is a cup point set screw designed for mechanical assemblies requiring a secure, non-permanent hold between a shaft and a mating component. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile and torsional strength suited to demanding industrial and commercial applications. The 1/2-13 UNC thread and 2-1/2 inch overall length accommodate deep-engagement installations where standard-length set screws fall short. Drive is via a 1/4 inch hex key. This package contains 25 pieces, making it practical for shop-floor restocking or multi-point assembly jobs. Maintenance technicians, millwrights, and mechanical contractors are the primary installers.

This set screw is used wherever a cup point style fastener is needed to lock collars, sprockets, gears, pulleys, or similar components onto a shaft without a permanent bond. The cup point geometry bites into the shaft surface to resist rotation and axial movement under load. Typical applications span HVAC equipment assemblies, pump and motor shaft collars, conveyor components, and general industrial machinery. Conformance to ASME/ANSI B18.3 and ASTM F912 ensures dimensional consistency with standard tooling and inspection practices.

Key Features

• Grade 8 alloy steel construction provides high proof load and shear strength for demanding mechanical connections
• Cup point geometry bites into shaft surface to resist both rotational and axial displacement
• 1/2-13 UNC thread standard ensures broad compatibility with standard tapped holes and tooling
• 1/4 inch hex key drive for precise torque application in tight clearance locations
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Package quantity of 25 pieces suits multi-point installations and shop stock replenishment

Compatibility

Designed as a standard replacement or stock fastener for any 1/2-13 UNC tapped hole requiring a cup point set screw with 2-1/2 inch overall length, conforming to ASME/ANSI B18.3 dimensions.

Installation Notes

Installation is performed by millwrights, maintenance technicians, or mechanical contractors using a 1/4 inch hex key or Allen driver. De-energize and lock out all equipment before servicing any shaft-mounted components. Thread engagement should be verified before tightening to avoid cross-threading in the mating hole. Do not exceed the torque capacity appropriate to the thread size and material grade as defined by applicable fastener standards.