CAST STEEL HOSE CLAMP - High Pressure Claw x 2 Bolt23.8 - 26.9 mm 26.9 - 30.2 mm 30.2 - 33.3 mm 33.3 - 38.1 mm 38.1 - 42.9 mm. Increase value Decrease value. Add to cart. Description. Heavy duty clamp designed for the retention of couplings with locking collars. Used for high pressure airlines or steam hose. Product Options.