This product is part of the Harmony 9001K range, an offer of padlock attachments. The 30mm pushbutton padlock attachment is used to holds button in depressed position. It is suitable for use in automotive, machine tools, crane and hoist, food and beverage, material handling, petrochemical, wastewater treatment, metallurgy and industrial applications. It is compatible with K, KX, SK non illuminated and illuminated push pull operators. It is easily installed into 1/16inch to 3/16inch diameter panel cut outs. This robust range offers long-term reliability in heavy duty industrial applications and extreme environments.