Illinois Lock Company of Wheeling, Illinois, offers a complete line of weather-resistant wing locks that are suitable for indoor and outdoor applications. A built-in flip-up cap provides protection from the elements. Both locks and cap are finished with E-Coat under a black-powder-coat finish for maximum corrosion resistance. Locks can remain unlocked for easy opening without a key. They feature a 180-degree clockwise key turn to unlock and a 90-degree clockwise knob turn to open. Users can choose a maintaining or a momentary function. Caps may be imprinted with a company logo.