Value Collection R83924948 5/16-18 X 1.5 in Round Head Screw

Product Description

The VALUE COLLECTION R83924948 is a 5/16-18 x 1.5-inch round head machine screw with a slotted drive, manufactured from 18-8 stainless steel with a bright, uncoated finish. This fastener uses Unified National Coarse (UNC) threading and is measured length-under-head at 1.5 inches. The 18-8 stainless steel construction provides solid corrosion resistance for general-purpose mechanical assembly. The round head profile offers a low-clearance bearing surface, and the slotted drive is compatible with standard flathead screwdrivers. This screw is sold in a minimum order quantity of 5 units, with each package containing 1 piece per the supplier unit-of-measure convention.

This fastener is suited for light to medium mechanical assembly in applications where corrosion resistance is required, such as HVAC panel fabrication, plumbing fixture mounting, electrical enclosure assembly, and general equipment maintenance. The 5/16-18 UNC thread size is a widely used coarse-thread standard in inch-measurement mechanical systems. It installs without a washer and is appropriate for use in residential and light commercial trade environments where stainless fasteners are specified to resist moisture or chemical exposure.

Key Features

• 18-8 stainless steel construction for corrosion resistance in moisture-prone environments
• 5/16-18 UNC coarse thread for broad compatibility with standard inch-system tapped holes
• 1.5-inch length measured under the head for precise fitment in blind and through-hole applications
• Round head profile provides a wide bearing surface with a low-profile appearance
• Slotted drive accepts standard flathead screwdrivers — no specialty tools required
• Bright, uncoated finish — no plating to compromise dimensional tolerances or conductivity

Compatibility

Designed as a standard inch-series machine screw compatible with any 5/16-18 UNC tapped hole or nut in applications specifying a round head slotted fastener without a washer.

Installation Notes

Installation is performed with a standard flathead screwdriver sized to the slotted head. Verify the receiving hole is properly tapped to 5/16-18 UNC before driving the screw to avoid thread damage. Do not overtorque stainless steel fasteners, as 18-8 alloy is susceptible to galling during installation — apply anti-seize compound when fastening into stainless or aluminum mating materials. Follow applicable mechanical codes for fastener selection in structural or pressure-bearing assemblies.