TarrKenn 12-pc. Hose Clamp Set Hose clamp set contains the following hose clamps sizes: 2 pc each of 7/16 to 5/8 and  to 1 . 4 pc each of  to 1 1/8" and 5/8" to 1 1/4". Zinc plated stainless steel construction for maximum corrosion resistance. Used primarily to hold or attach hose to fittings and to secure connections for various applications