Value Collection R63263843 Set Screw 1/2-13 X 1-1/4 in Cup Point

Product Description

The VALUE COLLECTION R63263843 is a 1/2-13 x 1-1/4 inch cup point set screw manufactured from Grade 18-8 stainless steel. It features a UNC thread standard and is driven by a 1/4 inch hex key. The cup point tip bites into the mating shaft to resist rotation and axial movement without the need for a through-hole. Grade 18-8 stainless steel provides solid corrosion resistance in wet or mildly chemical environments. This fastener is used by millwrights, maintenance technicians, and mechanical assemblers in a wide range of industrial and commercial applications where a reliable, removable shaft-locking solution is needed.

Cup point set screws at this thread size are commonly used to secure pulleys, collars, gears, and sprockets to shafts on rotating equipment such as conveyors, HVAC blower assemblies, pump drives, and light industrial machinery. The 18-8 stainless steel construction makes this screw appropriate for installations subject to moisture exposure, washdown conditions, or environments where carbon steel fasteners would corrode. This part is sold individually but requires a minimum order quantity of 50 units per purchase.

Key Features

• Cup point tip grips shaft surface firmly to resist both rotational and axial movement
• Grade 18-8 stainless steel construction provides corrosion resistance in wet and mildly chemical environments
• 1/2-13 UNC thread for broad compatibility with standard inch-series tapped holes
• 1/4 inch hex drive allows installation with standard hex keys or T-handles
• Overall length of 1-1/4 inches provides substantial thread engagement for secure clamping
• Fully threaded headless design allows the screw to sit flush with or below the surface of the collar or hub

Compatibility

Designed for use in any standard 1/2-13 UNC tapped hole requiring a cup point headless set screw; commonly used in collars, hubs, pulleys, and shaft clamps across industrial and commercial mechanical assemblies.

Installation Notes

Installation is performed using a 1/4 inch hex key or Allen driver. Ensure the mating threaded hole is clean and free of debris before threading the screw. Apply thread-locking compound if vibration is expected in the application. De-energize and lock out all rotating equipment before installing or removing set screws per applicable safety procedures.