The FHC 6" Back-To-Back Pull with no washers are constructed of 1.5 mil thick heavy brass tubing. These handles do not include decorative metal washers, although standard plastic washers are included to protect against glass-to-metal contact.
Heavy Duty Tubular Construction - No Washers Allows Seamless Look on Glass - Use On Tempered Glass
6" Center to Center | 3/4" Diameter | M6-1 Threading