Size; Female M10 x 1mm as pictured. These are top quality fittings made from solid brass, do not confuse with cheaper steel fittings.
Brass Brake Pipe Fittings 7/16" x 20 UNF Female 10 PACK for 1/4" Pipe FL16
Brass Brake Pipe Fittings M10 x 1mm Short Male 10 PACK for 3/16" Pipe FL13
JRP BN01 Pack 25 3/8in UNF Male Brass Brake Pipe Fittings Automotive Kit
