Quality British made Brass Union Pipe Nut and Cone (ferrule) for Model engineering / Scale Modelling.
Choice of sizes -
1/4" x 40tpi Nut and Cone for 1/8" Pipe
1/4" x 40tpi Nut and Cone for 5/32" Pipe ,
3/16" x 40tpi Nut and Cone for 3/32" Pipe
5/16" x 32tpi Nut and Cone for 3/16" Pipe
3/8"" x 32tpi Nut and Cone for 1/4" Pipe