Aperture size: 270mm x 50mm Screw centres: 275mm The Yale Security Letter Plate is a 300mm sprung letter plate for use on UPVC and Composite doors. It has an adjustable telescopic sleeve to ensure that it fits perfectly on door on varying thicknesses. This letterplate has an external foam seal for increased weather protection and internal brushes reduce air filtration and prevent heat loss. Supplied with fixings.
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