Value Collection C32424321 Flat Socket Cap Screw 1/4-20

Product Description

The Value Collection C32424321 is a 1/4-20 x 5/8-inch flat socket cap screw machined from 316 stainless steel. The 82-degree flat head sits flush with or below the mating surface when installed in a countersunk hole, making it well suited for applications where a protruding fastener head is not acceptable. Drive engagement is through a 5/32-inch hex socket. The UNC thread form provides reliable thread engagement in standard inch-system tapped holes. Installers in plumbing, HVAC, pool, and marine-adjacent trades reach for 316 stainless hardware where corrosion resistance in wet or chemically aggressive environments is a primary concern.

This screw is used wherever a flush or countersunk fastening point is required and corrosion resistance is critical. Typical applications include equipment panels, pump housings, valve assemblies, and enclosure covers exposed to moisture, chlorinated water, or mild chemical contact. The 1/4-20 UNC thread is one of the most common fastener sizes in light trade equipment, meaning tap compatibility is rarely an issue in standard assemblies. Sold individually; minimum order quantity is 10 pieces.

Key Features

• 316 stainless steel construction for superior corrosion resistance compared to 304 grade
• 82-degree flat head profile seats flush in standard countersunk holes
• 5/32-inch hex socket drive for precise torque application with standard Allen keys or hex bits
• 1/4-20 UNC thread — one of the most widely tapped sizes in trade equipment
• Overall length measured at 5/8 inches for straightforward stack-up calculations

Compatibility

Designed for use in any application requiring a 1/4-20 UNC countersunk fastening point; compatible with standard 82-degree countersunk holes in inch-system assemblies.

Installation Notes

Installation requires a 5/32-inch hex key or hex-socket bit driver. Ensure the receiving hole is properly countersunk to 82 degrees before driving the screw to avoid head deformation or surface damage. Do not exceed the torque capacity appropriate for the 1/4-20 thread class and material stack-up. When installing in dissimilar metals, consult applicable material compatibility guidance to assess galvanic corrosion risk.