• Cavity hole size: 250 x 40mm
• Flap opening: 180 degrees
• Sleeve Depth: 40mm to 80mm
• Supplied with fixings

The Yale Security Letter Plate is a 12 Inch sprung letter plate for use on UPVC and Composite doors. It incorporates a security cowl which prevents visibility of occupancy and restricts the opening of the internal letter-plate flap thereby reducing the risk of access to internal locks and keys. It has an adjustable telescopic sleeve to ensure that it fits perfectly on door on varying thicknesses. Supplied with fixings.