Value Collection R63268442 Set Screw 5/8-11 X 1 in

Product Description

The VALUE COLLECTION R63268442 is a cup point set screw designed for secure shaft-to-hub and collar fastening applications across mechanical assemblies. Manufactured from Grade 18-8 stainless steel, it offers corrosion resistance suitable for moderate chemical and moisture exposure. The thread is 5/8-11 UNC with an overall length of 1 inch, and the fastener is driven with a 5/16-inch hex key. Machinists, millwrights, and maintenance technicians use cup point set screws to lock rotating components such as pulleys, sprockets, and shaft collars in place without requiring a bolt-through configuration.

This set screw is used in residential and light commercial mechanical installations wherever a headless, flush-mount fastening point is required. Common applications include motor shaft assemblies, conveyor and drive components, HVAC blower wheel hubs, and equipment frames. The cup point geometry bites into the mating shaft surface to resist rotation and axial movement. The 5/8-11 UNC thread size makes it appropriate for medium-to-heavy duty fastening tasks where a larger-diameter set screw is specified by design.

Key Features

• Grade 18-8 stainless steel construction provides corrosion resistance in damp or mildly corrosive environments
• Cup point geometry creates a positive bite into the mating shaft surface to resist slippage
• 5/8-11 UNC thread standard ensures broad compatibility with tapped holes to that specification
• 5/16-inch internal hex drive allows use with standard hex keys and Allen wrenches
• Headless design sits flush or below the surface of the workpiece, eliminating snagging hazards
• Overall length of 1 inch suits medium-depth tapped holes in shaft collars, hubs, and couplings

Compatibility

Designed as a direct replacement or service fastener for any tapped assembly specifying a 5/8-11 UNC cup point set screw with a 1-inch overall length.

Installation Notes

Installation is performed with a 5/16-inch hex key; use a calibrated torque wrench with the appropriate hex bit adapter when torque specifications are defined by the equipment manufacturer. De-energize and lock out any rotating machinery before servicing shaft-mounted components in accordance with applicable OSHA lockout/tagout procedures. Avoid over-tightening, which can deform the cup point or damage the mating shaft surface. Verify the tapped hole is clean and free of debris before threading the fastener in by hand to confirm proper engagement.