Value Collection HCI21002000G6-001BX Hex Head Bolt Steel

Product Description

The VALUE COLLECTION HCI21002000G6-001BX is a heavy hex head bolt designed for structural and general fastening applications where corrosion resistance and load-bearing strength are required. The bolt features a 1-8 UNC thread size with a 20-inch length under head and partial threading, conforming to ASTM A307 standards. A hot-dipped galvanized finish provides zinc coating protection against rust and moisture exposure. Grade 2 steel construction meets the tensile and yield requirements specified under ASTM A307, making it suitable for a range of light structural and mechanical connections in the field.

This bolt is commonly used in construction, infrastructure, and mechanical assembly work where UNC-threaded fasteners of substantial length are required. The partial threading is appropriate for through-bolt applications in wood, steel, or composite assemblies where a smooth shank is needed in the mid-section. The hot-dipped galvanized finish makes it suitable for outdoor, wet, or moderately corrosive environments. Plumbers, pipefitters, structural tradespeople, and general contractors typically stock this type of fastener for flange connections, equipment mounting, and structural tie-down work.

Key Features

• 1-8 UNC thread form for broad compatibility with standard hex nuts and threaded inserts
• 20-inch length under head accommodates deep through-bolt and long-reach fastening scenarios
• Partially threaded shank reduces thread engagement where a smooth bearing surface is preferred
• Hot-dipped galvanized finish delivers superior zinc adhesion compared to electroplated coatings
• ASTM A307 certified — meets recognized standards for low-carbon steel externally threaded fasteners
• Grade 2 steel construction appropriate for general structural and mechanical fastening

Compatibility

Designed for use with standard 1-8 UNC hex nuts, washers, and threaded couplings in inch-measurement fastening systems. Suitable for applications requiring ASTM A307 Grade 2 low-carbon steel bolts in galvanized finish.

Installation Notes

Installation should be performed by qualified tradespeople following applicable structural or mechanical codes, including AISC and applicable building codes for the jurisdiction. Always use appropriately rated nuts and washers matched to the 1-8 UNC thread and Grade 2 material specification. Do not use impact tools at torque levels that exceed the Grade 2 tensile rating. Inspect the galvanized coating for damage before installation; compromised coating in corrosive environments may require additional protection.