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The VALUE COLLECTION HHCSI20500300-025BX is a 1/2-13 UNC hex head bolt with a 3-inch length under head, manufactured from A307 steel with a bright uncoated finish. Partially threaded along the shank, this fastener is designed for general structural and mechanical fastening applications. It conforms to ASTM A307 standards, making it a recognized choice for low-carbon steel bolting in construction and industrial assemblies. Installation is performed by millwrights, ironworkers, pipefitters, and general mechanical contractors working with bolted connections in standard load-bearing applications.
This bolt is suited for use in light structural steel connections, equipment mounting, framing assemblies, and general-purpose mechanical fastening where ASTM A307 Grade A fasteners are specified. The partially threaded shank provides a smooth bearing surface in the grip area, which is useful in shear-loaded joints. It is commonly used in residential and commercial construction, HVAC equipment mounting, and utility structures where high-strength bolt grades are not required by the design specification.
Designed as a standard inch-series hex head bolt for use with 1/2-13 UNC threaded nuts, inserts, and tapped holes in assemblies specifying ASTM A307 Grade A fasteners.
This fastener is installed using a standard 3/4-inch hex wrench or socket. Always consult the applicable structural or mechanical drawings for torque requirements before installation, as this content does not specify torque values. Follow AISC, IBC, or project-specific specifications when using A307 bolts in structural steel connections. Inspect threads and mating hardware for damage or contamination before assembly.
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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