Value Collection R80324844 Hex Cap Screw 5/16-18 316 Ss

Product Description

The VALUE COLLECTION R80324844 is a fully threaded hex head cap screw sized 5/16-18 x 1-1/2 inches, manufactured from Grade 316 stainless steel with no additional coating. The 5/16-18 designation indicates a 5/16-inch nominal diameter with 18 threads per inch on a Unified National Coarse (UNC) thread form. Full threading runs the entire length under the head, providing maximum thread engagement across the full 1-1/2-inch shank. This fastener meets DIN 933 dimensional standards and is suited for use by mechanical contractors, plumbers, HVAC technicians, and electricians who need corrosion-resistant fasteners in wet, chemical, or marine-adjacent environments.

Grade 316 stainless steel offers superior resistance to chlorides and corrosive media compared to Grade 304, making this screw a common choice for outdoor equipment mounts, pool mechanical rooms, coastal installations, and process piping support assemblies. Typical applications include securing equipment panels, pipe hangers, junction box covers, and structural brackets in environments where carbon steel fasteners would corrode prematurely. The uncoated finish means no coating degradation over time in submerged or high-humidity service.

Key Features

• Grade 316 stainless steel construction for enhanced chloride and corrosion resistance
• Fully threaded 1-1/2-inch shank for maximum thread engagement and clamping flexibility
• 5/16-18 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• Conforms to DIN 933 dimensional standard for consistent hex head geometry
• Uncoated finish eliminates coating failure risk in wet or chemically active environments

Compatibility

Designed as a standard inch-series hex head cap screw for use with 5/16-18 UNC nuts, inserts, and tapped holes in equipment and structural applications requiring Grade 316 stainless steel fasteners.

Installation Notes

Installation is performed by the appropriate trade for the assembly being fastened, including HVAC, plumbing, electrical, or general mechanical contractors. Use a standard hex wrench, socket, or combination wrench sized for a 5/16-inch hex head cap screw. Verify thread engagement depth meets design requirements before final torque. Do not mix stainless steel fasteners with dissimilar metals in highly conductive or electrolytic environments without appropriate isolation to prevent galvanic corrosion.