Marine Gas Spring Kit Standard Material Steel Force 60 lb Torque Not Applicable Max Weight 60 lb Rod Thread Size M8 Locking No Rod Dia 8 mm Cylinder Dia 19 mm Fitting Type Plastic Ball Socket Fitting Thread Size M8 Ball Diameter 10 mm Pin Dia 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