Value Collection HCI20250550G-100BX Hex Bolt 1/4-20 5-1/2 in Grade 2

Product Description

The VALUE COLLECTION HCI20250550G-100BX is a 1/4-20 UNC hex head bolt manufactured from Grade 2 steel with a hot-dipped galvanized finish. At 5.5 inches in length under the head and partially threaded, this fastener is suited for general-purpose structural and mechanical assemblies where corrosion resistance is a requirement. The hot-dipped galvanized coating provides a thick zinc layer that outperforms electroplate in outdoor and moisture-exposed environments. Conforming to ASTM A307 standards, this bolt is appropriate for low-carbon steel fastener applications across HVAC, plumbing, electrical, and general construction trades. Each box contains 100 bolts with a combined weight of 1 pound.

This bolt is used in a wide range of trade and light structural applications including equipment mounting, pipe hanger assemblies, ductwork supports, electrical enclosure installations, and general mechanical connections. The partial threading allows for greater shank engagement in through-bolt configurations and is standard practice in applications where the unthreaded shank bears the shear load. The galvanized finish makes this fastener appropriate for outdoor installations, treated lumber contact, and environments subject to humidity or intermittent moisture exposure.

Key Features

• 1/4-20 UNC thread for compatibility with standard inch-series nuts and tapped holes
• 5.5-inch length under head provides reach for thick-stack or multi-layer assemblies
• Hot-dipped galvanized finish delivers superior corrosion resistance over electroplated coatings
• Partially threaded shank distributes shear loads along the unthreaded body
• Meets ASTM A307 standard for low-carbon steel externally threaded fasteners
• Sold in boxes of 100 for jobsite and shop stocking convenience

Compatibility

Designed for use with standard 1/4-20 UNC hex nuts, lock nuts, and washers in inch-series fastener assemblies across general construction, HVAC, plumbing, and electrical applications.

Installation Notes

Installation is performed by the applicable licensed trade or general contractor depending on the assembly. Use a standard hex wrench or socket driver sized for 1/4-inch hex head fasteners. Verify thread engagement and do not overtighten, as Grade 2 steel has lower proof and tensile strength than Grade 5 or Grade 8 hardware. When used in structural connections, consult applicable building codes to confirm fastener grade and galvanization requirements.