Value Collection HCI50370550G-050BX Hex Head Cap Screw

Product Description

The VALUE COLLECTION HCI50370550G-050BX is a partially threaded hex head cap screw designed for general structural and mechanical fastening applications. It features a 3/8-16 UNC thread size and a 5-1/2 inch length under head, making it suitable for through-bolting or fastening thicker assemblies where a partial thread grip is required. Manufactured from Grade 5 steel, it provides a reliable tensile strength appropriate for medium-duty fastening tasks. The hot-dipped galvanized finish delivers corrosion resistance in outdoor and high-moisture environments, including HVAC equipment mounting, mechanical room installations, and general trade use.

This fastener is commonly used by mechanical, plumbing, and HVAC contractors for equipment mounting, framing connections, and structural assembly work. The 3/8-16 UNC thread pattern is a widely standardized size found across a broad range of trade and industrial applications. The partial threading design allows the unthreaded shank to pass cleanly through clearance holes, providing a stronger grip in thicker material stacks and reducing thread galling where clamping force is concentrated.

Key Features

• 3/8-16 UNC thread for broad tool and hardware compatibility
• 5-1/2 inch length under head suits thicker material assemblies
• Partially threaded shank for improved clamping in deep through-bolt applications
• Grade 5 steel construction for medium-duty tensile load capacity
• Hot-dipped galvanized finish for corrosion resistance in outdoor and wet environments
• Inch measurement system with standard UNC thread profile

Compatibility

Designed as a standard 3/8-16 UNC hex head cap screw for use in general mechanical, structural, and trade fastening applications where Grade 5 steel and a galvanized finish are specified.

Installation Notes

Installation should be performed by a qualified tradesperson using the appropriate hex socket or open-end wrench sized for a 3/8-inch fastener. Ensure mating hardware such as nuts and washers are rated for Grade 5 or higher and are compatible with galvanized fasteners. Follow applicable mechanical or structural codes for torque and fastener spacing. Inspect the galvanized coating for damage before installation in corrosive or outdoor environments.