RHEEM 60-24180-81 24V 1/2" X 1/2" HOT

Howdy! Thank you for posting your query about the 1/2" galvanized steel lock nut female thread. Yes, this nut has a nylon insert. This is a typically standard course threaded and should function with a galvanized bolt. However, reusability might not be one of its strong suits. Locknuts with nylon inserts are designed to resist loosening due to vibration, but it's generally recommended to use each nut only once as its holding power can decrease with each use. Once you are ready to place an order, just click "Add to Cart," fill in the required fields, and we'll take care of the rest. Thank you for choosing PlumbersStock. Have a great day!