Worm Drive hose clamps-Perforation 1)12.7mm design 2)worm drive hose clamps 3)China supply camlps 4)FOB,CIF,CFR Worm Drive hose Clamps-performation(SAE)Products Specific • DM 13B Series/DM13B1Serises: Band and housing :12.7mm design. 430/304 stainless steel.Screw:8mm hex-head. Galvanized carbon steel. • DM13QSeries: Band and housing: 12.7mm design. 430/304/316 stainless steel.Screw:8mm hex-head. ...