Value Collection 203111 Hex Head Cap Screw 5/16-18 X 3/4 in 316 Ss

Product Description

The VALUE COLLECTION 203111 is a hex head cap screw in a 5/16-18 thread size with a 3/4-inch length under head. It is manufactured from Grade 316 stainless steel, a corrosion-resistant alloy well suited for wet, marine, and chemically aggressive environments. The fastener follows Unified National Coarse (UNC) thread standards and features a 1/2-inch hex drive. It is used across plumbing, HVAC, pool equipment, and general mechanical assembly wherever corrosion resistance is a primary requirement. Installation is performed by licensed trades and experienced technicians using standard hand or power tools.

This screw is appropriate for residential and commercial applications where exposure to moisture, chlorine, salt air, or mild chemicals makes carbon steel fasteners unsuitable. Typical install scenarios include pool equipment panels, outdoor HVAC unit assemblies, marine plumbing fixtures, and stainless fabrication work. Its UNC thread form is compatible with standard tapped holes and hex nuts of the same thread designation. The 3/4-inch under-head length suits moderate material stack-ups common in sheet metal and bracket assemblies.

Key Features

• Grade 316 stainless steel construction for superior corrosion and chloride resistance
• 5/16-18 UNC thread for broad compatibility with standard tapped hardware
• 3/4-inch length under head suits moderate-depth fastening applications
• 1/2-inch hex drive accepts standard wrenches and sockets
• Inch system of measurement for direct replacement in standard imperial assemblies

Compatibility

Designed as a standard UNC hex head cap screw for use in any application requiring a 5/16-18 thread and 3/4-inch under-head length in Grade 316 stainless steel.

Installation Notes

Install with an appropriately sized wrench or socket driver; a 1/2-inch hex drive is required. De-energize or shut off any equipment being serviced before fastener replacement. Apply anti-seize compound when assembling stainless fasteners into stainless tapped holes to prevent galling. Follow applicable mechanical and building codes for fastener torque requirements based on joint design.