We are offering brass electrical parts, threads : iso metric (mm threads).ba threads.bsw threads.unc & unf threads.as per customers requirements. Material : free cutting brass is 319 type (i) orfree cutting brass as per bs 249 type (i) orhigh grade free cutting brass.any special brass material composition as per customers requirement. Platting : natural, nickle plated, tin plated or any coating as per customer specification.