Back Home / Pipe & Tube Fittings / Plastic Caps & Plugs / THREADED PLASTIC CAP FOR JIC 5/8-18 TUBE SIZE 3/8 THREADED PLASTIC CAP FOR JIC 5/8-18 TUBE SIZE 3/8 SKU: CD6A Categories: Pipe & Tube Fittings, Plastic Caps & Plugs 3/8 TUBE 5/8-18 THREAD Knufled for ease of application. Seals exceptionally well against dirt and moisture. Seals for masking during dipping, painting and plating. Case Quantity: 25 Log In For Pricing