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Coupling Nuts with Inspection HolesHillman Item #180477
Hex coupling nuts are defined by their elongated hexagonal shape and are used to connect two pieces of threaded material at opposite ends. These nuts are highly durable and suit a wide variety of industrial fastening applications. Hex couplers are typically threaded right hand. These coupling nuts feature punched inspection holes for visual checks of the interior threaded fasteners.
Threads Per Inch