M6 Thread 2.5mm Inner Dia Purple Aluminum Water Outlet for RC Model Product Name : Water Outlet;Thread Dia. : M6 Inner Dia. : 2.5mm/0.1";Hex Screw Nut Size : 8 x 8mm/0.31" x 0.31"(L*W) Seal Ring Size : 7 x 5mm/0.28" x 0.2"(O.D.*Inner D.);Total Size : 20 x 9mm /0.8" x 0.35"(L*Max.D) Material : Aluminum;Color : Purple Net Weight : 3g;Package Content : 1x Water Outlet