S U R & R offers a comprehensive line of OE brake tube nuts Perfect for replacement brake lines Available in different quantities or as a component in kits BR316 and BR EZ316 Features Bag includes four tube nuts Having the right tube nut on hand eliminates the time and hassle of trying to source the proper fitting Avoid using expensive adapters Works with S U R & R s ULTRABEND Tubing as well as stainless coated and steel tubing Specs Material Steel Tube Size 3 16 Thread Size 9 16 18 Flare Seat Inverted