Value Collection 409117BR Set Screw 5/8-11 X 2-1/4 in Cup Point

Product Description

The VALUE COLLECTION 409117BR is a 5/8-11 UNC cup point set screw designed for mechanical fastening applications where a secure, headless hold is required. Measuring 2-1/4 inches in length, this screw is manufactured from Grade 2 alloy steel, providing solid strength and hardness suitable for holding collars, hubs, pulleys, and similar components against shafts. The cup point design bites into the mating surface to resist rotation and axial movement without requiring a protruding head. This type of fastener is a standard component used by millwrights, machinists, and maintenance technicians across industrial and commercial settings.

This set screw is suited for use in shaft-to-hub assemblies, machinery collars, sprockets, and mechanical power transmission components. The 5/8-11 UNC thread standard makes it compatible with standard tapped holes found in a wide range of industrial equipment. The square drive requires a square key or bit for installation. Sold individually, with a minimum order quantity of 10 units per transaction.

Key Features

• Cup point geometry bites into shaft surface to resist rotation and axial movement
• 5/8-11 UNC thread for compatibility with standard tapped holes
• Grade 2 alloy steel construction for reliable hardness and strength
• 2-1/4 inch length under head for deep-thread engagement
• Square drive type for positive torque transfer during installation
• Headless design sits flush or below surface for clean, low-profile assemblies

Compatibility

Designed as a standard 5/8-11 UNC cup point set screw for use in any tapped bore or collar accepting this thread size and drive type.

Installation Notes

Installation requires a properly sized square key or driver bit. Ensure the tapped hole is clean and free of debris before threading the screw. De-energize and lock out any rotating machinery before servicing shaft-mounted components. Do not overtighten, as excessive torque may damage the shaft surface or strip the thread.