Scandvik 08134037027 Stainless Steel Hose Clamp (SAE Size 12, 22-32 mm, 7/8"-1 1/4", 12mm Band, 13632), 10 Pack All 316 Stainless Steel Construction Rolled up band edges prevent cutting into the Hose. Six degree thread pitch angle creates a vibration proof clamp All pressed worm gear housing increases the strength of the clamp by 30%.