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The VALUE COLLECTION HCI20370550G-025BX is a Grade 2 steel hex head bolt with a 3/8-16 UNC thread and a 5-1/2 inch length under head. The bolt features a hot-dipped galvanized finish for corrosion resistance and is partially threaded along its shank. It conforms to ASTM A307 standards, making it suitable for general-purpose structural and mechanical fastening applications. This item is sold in a minimum order quantity of 25 pieces, packaged as a single box. Trades such as plumbing, HVAC, electrical, and general construction crews will recognize this as a workhorse fastener for brackets, hangers, equipment mounts, and field fabrication work.
This bolt is used across residential and light commercial construction and mechanical installations where a galvanized, partially threaded hex bolt in the 3/8-16 size is called for. Typical applications include pipe hanger assemblies, equipment support brackets, structural connections, and general framing hardware. The hot-dipped galvanized coating makes it appropriate for outdoor, damp, or corrosive environments where bare steel fasteners would degrade prematurely. It is well suited for use by HVAC installers, plumbers, electricians, and general contractors working in the field or in mechanical rooms.
Designed as a general-purpose hex head bolt compatible with standard 3/8-16 UNC threaded nuts, inserts, and tapped holes used in mechanical, structural, and construction fastening applications.
Installation should be performed by a qualified tradesperson following applicable building, mechanical, or electrical codes for the fastener type and load requirements. Always use a properly sized hex wrench or socket to avoid rounding the head. Do not mix galvanized and non-galvanized hardware in corrosive environments, as galvanic differences can accelerate localized degradation. Verify that the mating nut or tapped hole thread class is compatible with a 3/8-16 UNC fastener before installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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