Value Collection R56000318 Hex Head Cap Screw 5/16-18

Product Description

The VALUE COLLECTION R56000318 is a fully threaded hex head cap screw designed for general fastening applications requiring corrosion resistance. Manufactured from Grade 316 stainless steel with no additional finish coating, this fastener carries a 5/16-18 UNC thread size and measures 1-3/4 inches under the head. Grade 316 stainless offers superior resistance to chlorides and harsh environments compared to Grade 304, making it a preferred choice in marine, chemical, food processing, and outdoor installations. The uncoated finish preserves the base material's natural corrosion resistance without added plating or treatment.

This cap screw is suited for residential and light commercial applications where moisture, salt air, or chemical exposure would degrade standard carbon steel fasteners. Typical install scenarios include pool and spa equipment mounting, marine hardware, outdoor HVAC brackets, plumbing fixture assembly, and any structural or mechanical connection where long-term corrosion resistance is required. Supplied individually, with a minimum order quantity of 10 pieces.

Key Features

• Grade 316 stainless steel construction for enhanced corrosion and chloride resistance
• Fully threaded along the entire 1-3/4 inch shank length under head
• 5/16-18 UNC thread standard for broad tool and hardware compatibility
• Uncoated finish — no plating or treatment that could chip, flake, or add dimensional variation
• Hex head drive accepts standard hex wrenches and sockets

Compatibility

Designed as an OEM-style replacement or general-use fastener for any application requiring a 5/16-18 UNC fully threaded hex head cap screw in Grade 316 stainless steel.

Installation Notes

Installation is performed with a standard hex wrench or socket set sized for a 5/16-18 fastener. Ensure mating threads are clean and free of debris before driving to prevent galling, which is common with stainless fasteners. Applying an appropriate anti-seize compound rated for stainless steel is recommended to reduce the risk of thread galling during installation and future removal. Follow applicable mechanical or structural codes for torque requirements based on the specific joint and load conditions.