8 mm, Cylinder Dia.
Marine Gas Spring Kit,40 lb Force,M8 Not Applicable, Stroke 250 mm, Extended Length 605 mm, Compressed Length 355 mm, Fixed Resistance No, Adjustable Resistance No, Damper Type Extension only, Includes Brackets.Marine Gas Spring Kit, Standard, Material Steel, Force 40 lb, Torque Not Applicable, Max. 19 mm, Fitting Type Plastic Ball Socket, Fitting Thread Size M8, Ball Diameter 10 mm, Pin Dia.