Galvanized Steel American Type Hose ClampsSAE J 1508 StandardType F 1/2" Hy-Gear ClampsWorm Drive StyleThis galvanized iron hose clamps also called Metal worm drive hose clamps.Materials:W1: All Galvanized SteelPopular sizes For Steel Hose Clamps below:WDGSHC06 10-22mm 3/8"--7/8" WDGSHC08 11-25mm 7/16"--1" WDGSHC10 13-27mm 1/2"--1-1/16" WDGSHC12 13-32mm 1/2"--1-1/4" WDGSHC16 18-38mm 11/16"--1-1/2"WDGSHC20 19-44mm3/4"--1-3/4" WDGSHC2425-51mm 1"--2" WDGSHC28 32-57mm 1-1/4"--2-1/4" WDGSHC3238-63mm 1-1/2"--2-1/2" WDGSHC36 44-70mm 1-3/4"--2-3/4" WDGSHC4051-76mm 2"--3" WDGSHC44 57-82mm2-1/4"--3-1/4" WDGSHC48 64-89mm 2-1/2"--3-1/2" WDGSHC5270-95mm 2-3/4"--3-3/4" WDGSHC5676-101mm 3"--4" WDGSHC60 83-108mm 3-1/4"--4-1/4" WDGSHC6464-114mm 2-1/2"--4-1/2" WDGSHC7276-127mm 3"--5 " WDGSHC8089-140mm 3-1/2"--5-1/2" WDGSHC88 102-152mm 4"--6" WDGSHC96 114-165mm 4-1/2"--6-1/2" WDGSHC104127-178mm 5"--7"