Value Collection R63260284 Set Screw 4-40 Cup Point Ss 18-8

Product Description

The VALUE COLLECTION R63260284 is a 4-40 UNC cup point set screw manufactured from grade 18-8 stainless steel. Set screws are fully threaded fasteners with no head, used to secure a component — such as a collar, gear, or pulley — against a shaft by applying direct point pressure. The cup point geometry bites into the mating surface for reliable holding force. Driven with a 0.050-inch hex key, this screw measures 3/8 inches in overall length. It is suited for light-duty mechanical assemblies where corrosion resistance and a low-profile, flush-mount installation are required. Installers in industrial maintenance, HVAC equipment assembly, and general mechanical fabrication work regularly use fasteners in this class.

This set screw is used in applications requiring a small-diameter, fine-pitch fastener in corrosive or washdown-prone environments. The 18-8 stainless steel construction resists rust and mild chemical exposure, making it appropriate for indoor mechanical assemblies, instrumentation panels, and HVAC component brackets. The 4-40 thread size is common in precision assemblies and light-duty shaft retention. It is sold individually but requires a minimum order quantity of 100 units, making it appropriate for stocking or batch fastener procurement.

Key Features

• Cup point geometry provides firm shaft engagement and resists loosening under vibration
• Grade 18-8 stainless steel construction offers corrosion resistance for wet or humid environments
• 4-40 UNC thread for compatibility with standard small-diameter tapped holes
• Hex drive requires a 0.050-inch hex key for installation and removal
• 3/8-inch overall length suits shallow-depth shaft retention applications
• Headless design allows flush or recessed installation within tapped bores

Compatibility

Designed as a standard 4-40 UNC cup point set screw for use in any tapped hole or threaded insert meeting the 4-40 UNC thread standard.

Installation Notes

Installation is performed by threading the screw into a pre-tapped 4-40 UNC hole using a 0.050-inch hex key. De-energize or lock out any rotating equipment before adjusting or installing set screws on shafts or moving components. Do not overtighten, as the small thread size is susceptible to stripping in soft base materials. Follow applicable mechanical assembly standards and torque guidelines for 4-40 stainless fasteners as specified by the equipment manufacturer.