Value Collection -33643-2 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION -33643-2 is a hex socket cap screw designed for secure, high-strength fastening in mechanical and structural assemblies. It features a 3/8-16 UNC thread size with a 5-inch length under head and a 5/16-inch hex drive socket. The fastener is partially threaded, allowing for clamping force across the grip length. Manufactured from alloy steel with a black oxide coating, it delivers solid tensile strength and moderate corrosion resistance. Licensed mechanics, maintenance technicians, and general contractors install this type of fastener across a wide range of industrial and commercial applications.

This cap screw is suited for use in machine assemblies, equipment mounting, and structural bolted connections where a flush, recessed drive is required. The hex socket drive allows torque application with a standard hex key or Allen driver in tight clearance areas where a hex head wrench would not fit. The black oxide finish provides mild surface protection and reduces light reflection in service environments. The partial threading is appropriate for applications requiring a defined grip length and bearing surface under the head.

Key Features

• 3/8-16 UNC thread for compatibility with standard inch-series tapped holes
• 5-inch length under head provides extended grip for thicker stack-ups
• Partially threaded shank for defined clamping length and shear resistance
• Alloy steel construction for high tensile and yield strength
• Black oxide coating for mild corrosion resistance and low surface reflectivity
• 5/16-inch hex socket drive for use in confined or recessed locations

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 hex socket cap screw for use in any tapped or through-hole application requiring a 3/8-16 UNC inch-series fastener.

Installation Notes

Installation is performed with a 5/16-inch hex key or Allen-drive bit rated for the applicable torque range. Ensure the mating tapped hole is clean and free of debris before driving. Always power down or de-energize any equipment before accessing fastened assemblies on live machinery. Follow applicable torque guidelines from the equipment manufacturer or relevant ASME standards for the fastener grade and material.