M1-3

10mmx 1.0 Fine thread, male steel nut with non threaded lead, SAE (double) and DIN (bubble) flare, 17mm long. This is the standard European (German, DIN) style brake line nut used with 3/16/4.75mm tube. Found with both SAE (double) flare and DIN (bubble) flare. It is now appearing everywhere, including late model American and Japanese cars. If you have a Bosch ABS pump, you have these nuts. The 10mm x 1.0 nut is a bit larger and has a finer thread than the 3/8” x 24 unf American nut. Caution, the 10mm nut will start in a 3/8” x 24 unf hole but will strip the threads as you tighten it. Used with UM14-3 union.