Please set the width across flats of the bolt or nut within the mouth opening. Please follow the proper torque recommended by the manufacturer when tightening.
Nut Width Across Flat (mm)
Dimensions B (mm)
Dimensions T1 (mm)
Tighten and loosen wrench for mechanical fittings of gas, water supply, hot water supply, air conditioning piping, etc.
Dimension l (mm)
Dimensions L (mm)
Water supply and hot water supply for the stainless steel flexible pipe fittings (hex): 20A for water supply polyethylene pipe metal fittings (six-octagonal): 13A, 20A, 25A water supply for the union nut (six-octagonal): 20A, 25A gas for flexible pipe fit