BRAMAH Very Narrow Stile HookboltIdeal for use on shop fronts, patios and closets, these narrow style hookbolt mechanism sliding door locks from Bramah are a robust and reliable choice of deadlock with a large hookbolt, hardened case and hardened internal components for superior durability. Reinforced bolts & hardened lock case for superior durability Options available for wood or timber application Keyed from both sides Supplied with 2C37 key Hookbolt For use on sliding doors