Value Collection 3TSSF96C400 Flat Socket Cap Screw 3/8-16

Product Description

The VALUE COLLECTION 3TSSF96C400 is a 3/8-16 UNC flat socket cap screw machined from 316 stainless steel, measuring 4 inches in overall length. The 82-degree flat head sits flush with the mating surface when fully installed, making it a go-to fastener wherever a low-profile, countersunk finish is required. Drive engagement is through a 7/32 inch hex socket. Grade 316 stainless steel provides elevated corrosion resistance compared to 304, particularly in chloride-rich and marine environments. Plumbers, pipefitters, pool service technicians, and industrial maintenance trades routinely specify this grade for wet or chemically exposed installations.

This screw is suited for use in residential and commercial plumbing fixtures, pool and spa equipment, marine hardware, food-processing equipment, and other applications where moisture, salt, or mild chemical exposure is a factor. The UNC thread form is the standard inch-series coarse thread, compatible with tapped holes and threaded inserts following ASME B1.1 specifications. The flush-seating flat head profile is appropriate wherever protruding fastener heads would interfere with clearance, flow, or aesthetics.

Key Features

• 316 stainless steel construction for superior resistance to corrosion and oxidation in wet environments
• 82-degree flat head seats flush with the workpiece surface for a low-profile, countersunk finish
• 7/32 inch hex socket drive for positive torque engagement with a standard Allen key or hex bit
• 3/8-16 UNC thread standard — inch-series coarse thread, widely compatible with standard tapped holes
• 4 inches overall length suits deeper stack assemblies and thicker material sections

Compatibility

Designed for use in standard 3/8-16 UNC tapped holes or threaded inserts conforming to ASME B1.1 inch-series coarse thread specifications. Suitable for countersunk applications requiring an 82-degree flat head seating angle.

Installation Notes

Installation requires a 7/32 inch hex key or socket bit driver. Confirm the receiving hole is drilled and countersunk to an 82-degree included angle to achieve full flush seating. When installing into dissimilar metals, consider galvanic compatibility to avoid accelerated corrosion at the joint interface. Always verify thread engagement depth meets the minimum specified by the applicable mechanical or plumbing code before applying final torque.