MS35058 Series toggle switches are recommended when maximum reliability is required. All contain a silicone rubber bushing seal. 20 amp rating at 125 VAC. Switches have 6-32 screw terminal. Mounting hardware included, neck mount. Behind panel dimension: 5/8″ x 1-1/8″ x 1-1/16″ deep. Neck: 7/16″ diameter x 1/2″ long.