Value Collection R83924882 5/16-18 X 1 in Round Head Screw

Product Description

The VALUE COLLECTION R83924882 is a 5/16-18 x 1 inch round head slotted machine screw manufactured from 18-8 stainless steel with a bright, uncoated finish. It features Unified National Coarse (UNC) threading at 5/16-18, meaning 18 threads per inch on a 5/16-inch major diameter. The 1-inch length is measured under the head. This screw is suited for general mechanical assembly, equipment fabrication, and maintenance applications where corrosion resistance and dimensional consistency are required. Licensed tradespeople and maintenance technicians across HVAC, plumbing, electrical, and industrial trades rely on 18-8 stainless fasteners for both interior and exterior service environments.

This machine screw is appropriate for use in light to medium-duty fastening applications across residential and commercial service work. It is well matched for panel assemblies, equipment housings, brackets, and structural connections where a flush-driving slotted round head profile is preferred. The 18-8 stainless steel construction provides solid resistance to rust and oxidation, making it a practical choice for humid or wet service environments common in mechanical rooms, rooftop units, pool equipment enclosures, and outdoor electrical panels.

Key Features

• 5/16-18 UNC thread form — 18 threads per inch, standard inch-series coarse pitch
• 1-inch length measured under the head for accurate fastening depth planning
• Round head profile with slotted drive for use with standard flathead screwdrivers
• 18-8 stainless steel material provides corrosion and oxidation resistance
• Bright, uncoated finish — no coating to interfere with thread engagement or conductivity
• No washer — installs without an integrated washer face for clean seating on flat surfaces

Compatibility

Designed as a standard 5/16-18 UNC inch-series machine screw suitable for use wherever a round head slotted stainless steel fastener of this thread size and length is specified.

Installation Notes

Install using an appropriately sized flathead screwdriver matched to the slotted head width to avoid cam-out and head damage. Ensure the mating hole is tapped or threaded to 5/16-18 UNC before driving. De-energize and lock out any equipment before accessing fastened enclosures or panels per applicable NFPA 70E or site-specific safety protocols. Do not overtighten stainless steel fasteners in stainless tapped holes, as galling can occur — use anti-seize compound where appropriate.