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Improve the security of your home or office by installing sash locks, which use a lock, latch and handle mechanism. The benefit of this is that the user can simply open and close a door without locking it, as this is automatically taken care of by the sash lock itself. Available in a great range of styles, sizes and finishes, Construction Supplies only stock the best quality products by the leading brands, including ERA Home Security, From and Anvil, and Zoo Hardware. Check out our full range of sash locks below.