NL Industries, Inc., through its subsidiary, CompX International Inc., operates in the component products industry in the United States and internationally. The company manufactures and sells mechanical and electronic cabinet locks, and other locking mechanisms, including disc tumbler locks, pin tumbler locking mechanisms, and CompX eLock and StealthLock electronic locks for use in various applications, such as ignition systems, mailboxes, file cabinets, desk drawers, tool storage cabinets, integrated inventory and access control secured narcotics boxes, vending and cash containment machines, medical cabinetry, electronic circuit panels, storage compartments, and gas station security. It also offers original equipment and aftermarket stainless steel exhaust headers, exhaust pipes, mufflers, and other exhaust components; gauges, such as GPS speedometers and tachometers; mechanical and electronic controls and throttles; wake enhancement devices, trim tabs, steering wheels, and other billet aluminum accessories; grab handles, pin cleats, and other accessories; and dash panels, LED indicators, wire harnesses, and other accessories primarily for performance and ski/wakeboard boats.