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The VALUE COLLECTION D30145-1 is a fully threaded hex head cap screw designed for general mechanical fastening in trade and industrial applications. Built to Grade 5 steel with a zinc-plated finish, it measures 5/8-11 thread size with a 1-inch length under head. The UNC thread form and ASME B18.2.1 compliance make it a standard-grade fastener suitable for structural and equipment assembly work. Licensed tradespeople, contractors, and maintenance technicians use this screw when a reliable medium-strength fastener is required in steel-to-steel or steel-to-bracket connections.
This fastener fits a wide range of mechanical, HVAC, plumbing, and electrical panel assembly applications where 5/8-11 UNC threaded connections are specified. It is appropriate for both new equipment assembly and field repair work. The zinc plating provides moderate corrosion resistance, making it suitable for indoor and light-duty outdoor environments. This screw is sold individually but requires a minimum order of 25 units per purchase.
Designed as a standard inch-series hex head cap screw for use in any application requiring a 5/8-11 UNC fully threaded fastener meeting ASME B18.2.1 dimensional standards.
Installation is performed with a standard hex wrench or socket set sized for a 5/8-11 cap screw. Always confirm the mating tapped hole or nut is clean and free of debris before installation. Do not exceed the rated torque range for Grade 5 fasteners as specified in the applicable equipment service documentation. Power down or de-energize any equipment before accessing fastener locations on live assemblies.
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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