This is a JIC closing plug with an external hexagon. Zinc-coated steel fittings provide some corrosion resistance, but are not meant for corrosive environments.
Specifications
Thread : UNF 9/16-18
Dash Size : 6
Connection type : Outer thread JIC
Material : Steel
Max pressure at 20 °C (bar) : 275
Material connection 1 : Steel
Surface protection connection 1 : Galvanic zink plated
![JIC Plug UNF 9/16''-18 (Dash Size 6) Steel 275bar (3863.75psi) [5 Pieces]](https://www.coolgrittools.com/wp-content/uploads/2026/06/f2eek_00.3fa0da29.webp)




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