... to 600mm.Available all kinds of connection thread, such as 1/2"BSP, 1-1/4"UNC, 5/8", PIXIE, M16, M22, M27 and ect ... /10001-1/4” UNC21215450/5001-1/4” UNC21815450/5001-1/4” UNC220, 22515450/5001-1/4” UNC227, 23015450/5001-1/4” UNC25016, 17, 20450/5001-1/4” UNC27016, 18, 22450/5001-1/4” UNC30016 ...