Value Collection 602408PR Set Screw 1/2-20 X 5/8 in Cup Point Ss

Product Description

The VALUE COLLECTION 602408PR is a 1/2-20 UNF cup point set screw manufactured from austenitic Grade A2 stainless steel. It measures 5/8 inches in overall length and is driven by a 1/4-inch hex key. The cup point tip bites into the mating surface to resist rotation and axial movement, making it a reliable choice for locking shafts, collars, and similar assemblies. This fastener meets ASME/ANSI B18.3 and ASTM F880 standards, confirming dimensional accuracy and mechanical performance. Tradespeople and maintenance technicians in HVAC, plumbing, and industrial settings regularly specify Grade A2 stainless for its corrosion resistance in wet or chemically active environments.

This set screw is suited for applications where a flush or recessed fastener is required and no protruding head is acceptable. Common uses include shaft-to-collar locking on fan assemblies, pump shafts, sprocket hubs, and equipment frames. The UNF thread form provides finer pitch engagement compared to UNC, making it appropriate for higher-torque clamping in thinner-walled components. Grade A2 stainless maintains performance in both indoor and outdoor installations where mild corrosion exposure is a concern.

Key Features

• Cup point geometry bites into shaft or mating surface to resist rotational and axial movement
• 1/2-20 UNF thread for fine-pitch engagement in precision or thin-walled applications
• 5/8-inch overall length suits standard collar and hub depths
• Austenitic Grade A2 stainless steel provides corrosion resistance without surface treatment
• 1/4-inch hex drive compatible with standard hex keys and Allen drivers
• Meets ASME/ANSI B18.3 and ASTM F880 dimensional and performance standards

Compatibility

Designed as an OEM-style or replacement set screw for any 1/2-20 UNF threaded collar, hub, or assembly requiring a cup point fastener with a 1/4-inch hex drive.

Installation Notes

Installation is performed with a 1/4-inch hex key or Allen driver; confirm the key is fully seated before applying torque to avoid rounding the socket. Ensure the mating shaft or surface is clean and free of debris before tightening so the cup point seats properly. Power down or de-energize any rotating equipment before servicing fasteners on shafts or collars. Follow applicable equipment manufacturer guidelines and relevant industry codes when replacing fasteners in mechanical assemblies.