· M - Mortise cylinder lock preparation

The mortise preparation provides a higher level of security than the 'L' style lock. The locks can be matched to the project hardware. Cierra's doors accept a standard 1-1/8" mortise cylinder by most lock manufacturers (Best, Corbin, Russwin, Schlage, etc.).

· D - Detention lock preparation

The detention lock preparation will accommodate several brands of heavy-duty detention deadbolt locks. The most common use for this option is in maximum security applications.

· B - Galvanized bonderized steel

This material is an economical choice for use where a corrosion resistant material is required.

· S - Stainless steel type #304

With #4 satin polish finish. Stainless steel material is typically used in areas that require the highest level of corrosion resistance. It is also used in areas where a polished stainless steel look is desired.

· C - Drip cap on frame

The drip cap is mounted on the upper horizontal frame, and directs running water away from the face of the door to assist with weather resistance. This option is not available on fire rated panels.

· H - Continuous piano hinge

Occasionally, a flush piano style hinge is required on access panels for specification compliance.

· M - Masonry anchors

Masonry anchors secure the panel when installed in masonry.

· Z - Concealed continuous piano hinge

This hinge option provides added security while maintaining an appealing appearance. This hinge is not available on fire rated panels.