Value Collection R63642445 Set Screw 5/16-18 X 3/8 in

Product Description

The VALUE COLLECTION R63642445 is a brass cup point set screw designed for mechanical assemblies requiring a reliable, non-permanent fastening solution. Threaded 5/16-18 UNC with an overall length of 3/8 inches, this headless fastener is driven by a 5/32-inch hex key and seats with a cup point that bites into the mating shaft to resist rotational and axial movement. Brass construction offers corrosion resistance and is well suited for applications where galling with steel hardware is a concern. Machinists, millwrights, and mechanical assemblers commonly install this type of fastener in shaft collars, pulleys, and similar components.

This set screw is appropriate for general industrial and mechanical assembly applications where a compact, headless fastener is needed. The 5/16-18 UNC thread is a common size found in shaft collar and hub assemblies across light industrial, HVAC equipment, and mechanical drive systems. The cup point profile provides positive shaft engagement without requiring a machined flat on the shaft. Sold individually per package with a minimum order quantity of 100 pieces.

Key Features

• 5/16-18 UNC thread for broad compatibility with standard tapped holes
• 3/8-inch overall length suits shallow engagement applications
• Cup point geometry grips shaft surface without requiring a machined flat
• Brass material provides corrosion resistance and prevents galling against dissimilar metals
• 5/32-inch hex drive accepts standard allen keys and hex bit drivers
• Headless design sits flush or below surface for clearance-sensitive assemblies

Compatibility

Designed as a standard 5/16-18 UNC cup point set screw suitable for shaft collars, hubs, pulleys, and similar mechanical components that accept headless set screws of this thread size and length.

Installation Notes

Installation requires a 5/32-inch hex key or Allen driver. De-energize and lock out all rotating equipment before servicing any shaft or collar assembly. Verify the tapped hole is clean and free of debris before threading the screw to avoid cross-threading the brass fastener, which is softer than steel. Torque to the assembly manufacturer's specification for 5/16-18 set screws.