Silicon bronze nut(C65100,C65500) was manufactured according to ANSI,DIN,etc. Hexagon heavy nut,finished jam hex nut,full hex nut,machine screw nut,etc. Internal diameter of of Nuts:#8-1 1/4"(M4-M30) Threads:UNC/UNF,BS threads,Metric threads,other threads according custom design. packing:polybag and carton.[...]