Back Home / Pipe & Tube Fittings / Plastic Caps & Plugs / THREADED PLASTIC PLUG FOR JIC 1/2-20 TUBE SIZE 5/16 THREADED PLASTIC PLUG FOR JIC 1/2-20 TUBE SIZE 5/16 SKU: PD50 Categories: Pipe & Tube Fittings, Plastic Caps & Plugs 5/16 TUBE 1/2-20 THREAD Knufled for ease of application. Seals low pressure requirements with light finger tightening. 5/16 TUBE 1/2-20 THREAD Knufled for ease of application. Seals low pressure requirements with light finger tightening. Case Quantity: 50 Log In For Pricing