Value Collection 5181 Hex Head Cap Screw 5/16-18 2-1/2in 316SS

Product Description

The VALUE COLLECTION 5181 is a 5/16-18 hex head cap screw measuring 2-1/2 inches under the head, manufactured from Grade 316 stainless steel with a Unified National Coarse (UNC) thread standard. Grade 316 stainless steel offers strong resistance to corrosion, chlorides, and marine environments, making this fastener well suited for demanding service conditions. The 1/2-inch hex drive allows installation with standard hand or power tools. This screw is used by plumbers, pipefitters, HVAC technicians, electricians, pool service professionals, and general contractors wherever a corrosion-resistant fastener is required.

This hex head cap screw is appropriate for residential and commercial applications where exposure to moisture, chemicals, or saltwater is a concern. Typical uses include securing pipe flanges, equipment mounting brackets, pump housings, pool equipment enclosures, and electrical panel supports. The UNC thread form is the most widely used inch-series thread standard and is compatible with standard UNC-tapped holes and nuts of the same nominal size and thread pitch.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and chemical-exposure environments
• 5/16-18 UNC thread form compatible with standard inch-series tapped holes and nuts
• 2-1/2 inch length under head suits medium-depth fastening applications
• 1/2-inch hex drive fits common hand wrenches and power sockets
• Inch measurement system for straightforward sizing with standard trade tools

Compatibility

Designed as a standard inch-series UNC hex head cap screw for use in any application requiring a 5/16-18 threaded fastener in Grade 316 stainless steel.

Installation Notes

Installation is performed by the applicable licensed trade or mechanical contractor depending on the end application. Always ensure the mating tapped hole or nut matches the 5/16-18 UNC thread specification before installation. De-energize electrical systems and shut off fluid supply lines before servicing any equipment where fasteners are being replaced. Do not mix stainless steel fasteners with dissimilar metals in environments where galvanic corrosion may occur without appropriate isolation measures.