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JFP in PA · 03-19-2015, 11:38 AM

That is a DIN/ISO double flare (sometimes call a "mushroom" flare), which is reusable:

If the end of the tubing looks like a button and the back side angle of the flare is 90 degrees it is the DIN flare. If you look at the true "bubble" photo above, the back side is rounded. You must use a nut with a "lead" for the DIN flare (nut has unthreaded tip).

M1-3 10 x 1.00MM common European/DIN nut with DIN flare

To make this style flare, you need a very special style of tool.

03-19-2015, 11:38 AM	#8
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,485	That is a DIN/ISO double flare (sometimes call a "mushroom" flare), which is reusable: If the end of the tubing looks like a button and the back side angle of the flare is 90 degrees it is the DIN flare. If you look at the true "bubble" photo above, the back side is rounded. You must use a nut with a "lead" for the DIN flare (nut has unthreaded tip). M1-3 10 x 1.00MM common European/DIN nut with DIN flare To make this style flare, you need a very special style of tool. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein Last edited by JFP in PA; 03-19-2015 at 12:10 PM.