Value Collection R63003963 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION R63003963 is a hex socket cap screw designed for secure fastening in applications where a recessed drive and high corrosion resistance are required. It features a 3/8-16 UNC thread size and a 1.25 inch length under the head, driven by a 5/16 inch hex key. Manufactured from grade 316 stainless steel, this fastener resists corrosion in wet, marine, and chemically exposed environments. It is suited for mechanical assemblies, equipment mounting, and structural connections where standard carbon steel fasteners would be inadequate due to moisture or chemical exposure.

This cap screw is used across a wide range of trade and industrial applications including HVAC equipment panels, plumbing system brackets, pool and spa equipment enclosures, and electrical enclosures where stainless hardware is specified. The 3/8-16 UNC coarse thread pattern provides strong clamping force and is compatible with standard UNC tapped holes and nuts of the same thread designation. It is appropriate for both indoor and outdoor service conditions where corrosion resistance is a priority.

Key Features

• Grade 316 stainless steel construction for superior corrosion and chemical resistance
• 3/8-16 UNC coarse thread for broad compatibility with standard tapped holes and hardware
• 1.25 inch length under head suits medium-depth fastening applications
• 5/16 inch hex socket drive allows use of standard hex keys and Allen wrenches
• Recessed socket head reduces snag risk and allows flush or countersunk installations

Compatibility

Designed as a standard 3/8-16 UNC hex socket cap screw suitable for use in any application requiring a coarse-thread stainless fastener of this drive size and length.

Installation Notes

Installation is performed with a 5/16 inch hex key or Allen-type driver. Ensure the mating tapped hole or nut is the same 3/8-16 UNC thread specification before installation. Do not mix stainless fasteners with dissimilar metals in applications where galvanic corrosion is a concern. Power down and de-energize any equipment before accessing fastener locations on electrical or HVAC assemblies.