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The VALUE COLLECTION R52001255 is a square head bolt designed for general fastening applications in structural, mechanical, and industrial assemblies. It features a 5/8-11 UNC thread with a 2-1/2 inch length under the head, manufactured from Grade 2 uncoated steel. The square head profile allows wrench or pipe wrench engagement where a hex fastener is not suitable. This bolt conforms to ANSI/ASME B18.2.1 dimensional standards. At 0.263 pounds per piece, it is a solid, heavy-duty fastener suited for installers and contractors working with steel structures, equipment mounting, and utility connections.
This bolt is used in residential and commercial construction, equipment fabrication, and general mechanical assemblies where a square head drive configuration is required. Typical applications include wood-to-steel connections, structural framing, agricultural equipment, and utility mounting hardware. It is installed by millwrights, ironworkers, pipefitters, plumbers, and general contractors across a wide range of trade environments.
Designed as a general-purpose square head bolt compatible with any standard 5/8-11 UNC nut or threaded insert meeting ANSI/ASME B18.2.1 specifications.
Installation is performed using an appropriately sized wrench or pipe wrench on the square head. Always verify that the mating nut or threaded component matches the 5/8-11 UNC thread specification before installation. For structural applications, follow applicable load and torque requirements defined by the project engineer or applicable building code. Uncoated steel should be protected from moisture exposure in corrosive environments to prevent rust.
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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