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The VALUE COLLECTION HCI51250300G-001BX is a fully threaded hex head cap screw designed for heavy-duty fastening in structural and mechanical applications. It measures 1-1/4-7 UNC thread size with a 3-inch length under head. Manufactured from Grade 5 steel and finished with a hot-dipped galvanized coating, this fastener provides corrosion resistance suitable for outdoor and exposed installations. It is commonly installed by HVAC technicians, plumbers, electricians, and general tradespeople wherever a strong, corrosion-resistant threaded fastener is required.
This hex head cap screw is suited for residential and commercial construction, equipment mounting, and structural assembly work. The UNC thread form is the standard inch-series coarse thread, compatible with standard hex nuts, lock nuts, and threaded inserts of matching 1-1/4-7 specification. The fully threaded shank allows engagement along the entire fastener length, making it well suited for through-bolting and clamping applications where maximum thread contact is needed.
Designed as a standard inch-series UNC hex head cap screw; compatible with any 1-1/4-7 UNC threaded nuts, washers, or tapped holes conforming to inch-series thread standards.
Install using an appropriately sized hex wrench or socket drive rated for the fastener size. Ensure mating threads are clean and free of debris before installation. Follow applicable structural or mechanical codes, including AISC or equipment manufacturer guidelines, when using fasteners in load-bearing assemblies. Do not mix galvanized fasteners with dissimilar metals in corrosive environments without consulting applicable corrosion compatibility standards.
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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