Value Collection 63873 Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 63873 is a flat socket cap screw designed for flush or countersunk fastening applications requiring a clean, low-profile head. The 82-degree flat head seats fully into a countersunk hole, leaving the fastener flush with or below the surface of the workpiece. Machined to a 5/16-18 UNC thread and measuring 2.5 inches in overall length, this screw is fully threaded from tip to head. Drive engagement is through a 3/16-inch hex socket, which allows high torque input in tight spaces. The 18-8 stainless steel construction provides corrosion resistance suitable for wet or chemically active environments.

This screw is used wherever a flat-head, countersunk fastener is needed in stainless steel assemblies. Typical applications include machine frames, enclosures, brackets, and panels in industrial, marine, food-service, and HVAC equipment. The fully threaded shank makes it suitable for thin material fastening and nut-and-bolt configurations. It is sold individually with a minimum order quantity of 50 pieces, making it appropriate for both maintenance stock and assembly production runs.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• 3/16-inch hex socket drive for high-torque installation in confined spaces
• 5/16-18 UNC thread for broad tool and hardware compatibility
• Fully threaded shank along the entire 2.5-inch length
• 18-8 stainless steel construction resists corrosion and oxidation

Compatibility

Designed as a standard UNC flat socket cap screw for use in countersunk holes sized for a 5/16-inch, 82-degree flat-head fastener. Compatible with any application calling for a 5/16-18 x 2-1/2-inch fully threaded flat socket cap screw in 18-8 stainless steel.

Installation Notes

Installation requires a 3/16-inch hex key or Allen driver rated for the required torque. The mating material must be countersunk to an 82-degree included angle to achieve a proper flush seat. Ensure the tapped hole or nut thread is clean and free of debris before driving. Use appropriate anti-seize compound on stainless fasteners when mating to stainless threaded holes to reduce the risk of galling.