Value Collection HCI20310075G-100BX Hex Head Bolt 5/16-18

Product Description

The VALUE COLLECTION HCI20310075G-100BX is a fully threaded Grade 2 hex head bolt designed for general-purpose fastening applications. It features a 5/16-18 UNC thread and measures 3/4 inches in length under the head. Constructed from steel with a hot-dipped galvanized finish, this bolt meets ASTM A307 standards, making it appropriate for structural and mechanical assemblies where corrosion resistance is a consideration. Installation is straightforward with standard hex tooling, and the fully threaded shank provides consistent clamping force along the entire fastener length.

This bolt is suited for a wide range of residential and light commercial construction, HVAC equipment mounting, plumbing supports, and general mechanical assembly work. The hot-dipped galvanized coating offers added protection in outdoor or moderately corrosive environments. It is sold in a minimum order quantity of 100 units, making it practical for contractors and tradespeople who require consistent fastener stock on job sites or in shop inventory.

Key Features

• 5/16-18 UNC thread for broad compatibility with standard inch-system hardware
• Fully threaded shank allows maximum thread engagement across the full 3/4-inch length under head
• Hot-dipped galvanized finish provides corrosion resistance for outdoor and damp environments
• Grade 2 steel construction meets ASTM A307 fastener standards
• Inch measurement system with length measured under the head for consistent installation sizing

Compatibility

Designed as a general-purpose replacement or stock fastener for applications requiring a 5/16-18 UNC fully threaded hex head bolt with a hot-dipped galvanized finish and ASTM A307 compliance.

Installation Notes

Installation is performed with a standard hex wrench or socket driver sized for a 5/16-18 bolt head. Always ensure the mating nut or tapped hole matches the UNC thread specification before installation. Torque to the specification required by the assembly drawing or applicable code for Grade 2 fasteners. Use appropriate flat washers or lock washers as required by the application to prevent loosening.