Value Collection 88547864 Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 88547864 is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. It features a hex socket drive and is manufactured from alloy steel with a black oxide finish for corrosion resistance in moderate environments. The 5/16-18 UNC thread and 1-1/4 inch overall length make it suitable for a wide range of structural and mechanical assemblies. This screw is fully threaded, providing consistent clamping force along the entire fastener length. It is installed by machinists, millwrights, maintenance technicians, and general tradespeople working with metal fabrications and machinery.

This flat socket cap screw is used in countersunk hole applications where a flush surface finish is required after installation. Common uses include machine frames, fixtures, tooling plates, and structural assemblies where protruding fastener heads would interfere with mating components or moving parts. The hex socket drive allows torque application in tight spaces where a standard wrench cannot reach. The UNC thread standard is compatible with standard inch-system tapped holes found throughout industrial and commercial equipment.

Key Features

• Flat head profile seats flush in countersunk holes for a clean, low-profile installation
• 3/16-inch hex socket drive allows use in confined spaces with a standard Allen or hex key
• Fully threaded 1-1/4 inch length provides consistent thread engagement throughout
• Alloy steel construction offers high tensile strength for demanding mechanical applications
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• 5/16-18 UNC thread conforms to standard inch-system tapped hole specifications

Compatibility

Designed as a standard inch-series flat socket cap screw compatible with countersunk holes tapped to 5/16-18 UNC specifications in alloy steel, aluminum, and other structural materials.

Installation Notes

Installation should be performed by a qualified technician using the correct 3/16-inch hex key or Allen driver to avoid rounding the socket. Ensure the mating hole is properly countersunk to the correct angle before installation. Apply appropriate thread-locking compound or torque to specification per the equipment manufacturer's requirements. Always de-energize and lock out machinery before servicing fasteners on powered equipment.