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The VALUE COLLECTION SBMN031CP-100BX is a 5/16-18 UNC hex nut machined from silicon bronze, supplied uncoated with a bright finish. Silicon bronze offers strong corrosion resistance in marine, coastal, and wet environments, making it a preferred material where steel fasteners would corrode prematurely. The right-hand thread pattern is standard for general assembly. Each nut measures 9/16 inches across the flats and 7/32 inches in height. This listing covers a box quantity of 100 pieces. Plumbers, marine contractors, and general tradespeople working with corrosion-sensitive assemblies will find this fastener appropriate for a wide range of structural and mechanical connections.
This hex nut is suited for use in plumbing, marine hardware, HVAC assemblies, and any application requiring a non-ferrous, corrosion-resistant fastener. The 5/16-18 UNC thread is one of the most common coarse-thread sizes in North American trade work, fitting a wide variety of threaded rod, bolts, and stud applications. The bright uncoated finish is appropriate where galvanic compatibility with bronze or copper components is a priority. This product does not meet military specifications and carries a non-graded material designation.
Designed for use with any 5/16-18 UNC threaded bolt, stud, or threaded rod requiring a standard hex nut. Suitable for silicon bronze or copper alloy fastener assemblies where galvanic compatibility is required.
Installation is performed by hand or with a standard 9/16-inch wrench or socket driver. Ensure mating threads are clean and free of debris before assembly. In corrosion-sensitive applications, avoid mixing with dissimilar metals that may accelerate galvanic corrosion. Power down any relevant systems and follow applicable mechanical or plumbing codes before fastener service or replacement.
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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