Cylinder Mounting Hardware, Mount Type Clevis, For Bore Diameter 40 mm, Body Material Aluminum, Overall Length 52 mm, Mount Hole Center-to-Center Width 28 mm, Overall Width 52 mm, Overall Height 25 mm, Compatible with Brand Speedaire, Includes (2) Retaining Rings, (4) Bolts, (4) Pins, Lock Nut, Pin, Product Type Clevis Bracket, System of Measurement Metric.