AWAB Hose Clamp, Stainless Steel, US Size 52, 2-3/4" to 3-3/4". Clamp has rolled band edges to eliminate risk of damage to hose. Retains its circular shape while being tightened. The unperforated band features extra wide threads and smooth inside surface. Band and saw threads are properly pitched making clamp immune to vibration backoff. Can be used in enviroments with aggressive atmosphere and high risk of corrosion.