Value Collection 88547849 Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 88547849 is a flat socket cap screw designed for applications where a flush or countersunk fastener profile is required. Sized at 5/16-18 x 3/4 inches overall length with full threading, this screw uses a 3/16-inch hex socket drive for precise torque application. Constructed from alloy steel with a black oxide finish, it provides a combination of strength and moderate corrosion resistance suitable for indoor and light-duty mechanical assemblies. Licensed fastener technicians, machinists, and maintenance professionals commonly install this type of screw where a low-profile head must sit flush with or below the surface of a mating component.

This flat socket cap screw is suited for use in machine assemblies, fixtures, equipment panels, and structural brackets where a countersunk socket drive fastener is specified. The UNC thread standard (5/16-18) makes it compatible with standard inch-system tapped holes commonly found in industrial machinery, fabricated steel frames, and mechanical enclosures. The black oxide finish blends cleanly into dark or finished surfaces. It is sold in a package quantity of 13 per order.

Key Features

• Flat head profile allows flush or countersunk installation in mating surfaces
• 3/16-inch hex socket drive for controlled torque with standard Allen keys or hex bit drivers
• Alloy steel construction for higher tensile strength compared to standard carbon steel fasteners
• Black oxide finish provides mild corrosion resistance and a low-reflectance appearance
• Fully threaded along the 3/4-inch length for maximum thread engagement in shallow through-holes
• UNC thread form (5/16-18) compatible with standard inch-system tapped holes

Compatibility

Designed as a standard inch-series flat socket cap screw for use in any application requiring a 5/16-18 UNC threaded, countersunk socket drive fastener in alloy steel.

Installation Notes

Install using a 3/16-inch hex key or socket bit driver sized to the drive recess. Ensure the mating hole is properly countersunk to the correct angle to achieve full flush seating of the flat head. Apply appropriate thread-locking compound or fastener preload as specified by the equipment manufacturer or applicable mechanical standards. Inspect threads in the receiving hole for damage or contamination before installation.