Our Stainless Steel Super Flangeless FlushNut ensures durability and chemical resistance. Our nut offers the highest pressure holding of all of our flat-bottom fittings. It is excellent for use with tubing assemblies. FlushNuts offers the answer for those tight-space applications where nut heads often interfere with each other. It has a 1/4-28 Flat-Bottom Port and is for 1/8″ tubing OD. It comes as a single and comes in a 10 pack. Brochure