Value Collection MP63868 Flat Socket Cap Screw 5/16-18 X 1 in

Product Description

The VALUE COLLECTION MP63868 is an 82-degree flat socket cap screw designed for flush or countersunk fastening applications in metal, wood, and composite assemblies. It features a hex socket drive sized at 3/8 inches and is manufactured from 18-8 stainless steel, providing corrosion resistance suitable for both indoor and outdoor environments. The 5/16-18 UNC thread and 1-inch overall length make it a common choice in light structural, equipment mounting, and fabrication work. Tradespeople and assemblers who require a clean, low-profile fastener head that sits flush with the mating surface rely on this screw type to maintain surface integrity and reduce snagging or interference.

This flat socket cap screw is used across a wide range of trade and industrial applications including HVAC equipment assembly, electrical enclosure fabrication, plumbing fixture mounting, and general mechanical assembly. The 82-degree countersunk head angle conforms to standard inch-series countersink specifications, making it compatible with pre-drilled countersunk holes in typical steel and aluminum components. It is sold in multiples of 25 units per order to suit production and service work.

Key Features

• 82-degree flat countersunk head for flush seating in standard inch-series countersunk holes
• 3/8-inch hex socket drive accepts standard Allen keys and hex bit drivers
• 18-8 stainless steel construction provides corrosion resistance in wet or outdoor environments
• 5/16-18 UNC thread standard for broad compatibility with inch-series tapped holes
• 1-inch overall length suits a wide range of light structural and equipment fastening tasks

Compatibility

Designed as a standard inch-series flat socket cap screw for use in any application requiring a 5/16-18 UNC countersunk threaded fastener with an 82-degree head angle and hex socket drive.

Installation Notes

Installation is performed with a 3/8-inch hex key or Allen-head bit driver. Ensure the mating hole is properly countersunk to 82 degrees before driving the fastener to avoid head distortion or improper seating. Do not overtorque stainless steel fasteners, as galling can occur — apply an anti-gall lubricant when fastening into stainless tapped holes. Confirm thread engagement depth meets the requirements of the joint design before final assembly.