Value Collection R40681448 Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION R40681448 is a hex socket cap screw designed for secure fastening in mechanical, structural, and industrial assembly applications. It features a 5/16-18 UNC thread and measures 4 inches in length under the head. Drive engagement is through a 1/4 inch internal hex socket, requiring an Allen wrench or hex bit driver. Constructed from 18-8 stainless steel, this fastener offers corrosion resistance suitable for wet, outdoor, or chemically exposed environments. It is installed by maintenance technicians, millwrights, pipefitters, and general mechanical tradespeople.

This screw is suited for use in equipment assemblies, enclosures, brackets, and structural connections where a flush or low-profile head and high corrosion resistance are required. The 5/16-18 UNC coarse thread pattern provides reliable engagement in standard tapped holes and threaded inserts across a wide range of industrial and commercial equipment. The 18-8 stainless steel alloy makes it appropriate for food service, marine-adjacent, and outdoor installations where carbon steel fasteners would corrode.

Key Features

• 5/16-18 UNC coarse thread for standard tapped-hole compatibility
• 4 inch length under head for deep-reach fastening applications
• 1/4 inch internal hex drive for Allen wrench or hex bit engagement
• 18-8 stainless steel construction for corrosion resistance in wet or outdoor environments
• Socket cap head profile keeps hardware low-profile and recessed in counterbored applications

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any tapped hole or threaded insert accepting 5/16-18 coarse thread fasteners.

Installation Notes

Installation requires an Allen wrench or hex bit driver sized at 1/4 inch. Ensure the mating tapped hole is clean and free of debris before threading. Apply appropriate thread lubricant or anti-seize compound when installing into dissimilar metals to prevent galling on stainless threads. Always de-energize and lock out equipment before performing fastener work on live machinery.