Alignment Corner Joint MM55 & MM77

The MM55 and MM77 corner joints are produced in both plastic and metal variants, designed to reinforce corner connections in aluminum doors and windows. The MM77 is specifically designed for the TS77 system, while the MM55 is predominantly used at the rear of normal hinged doors and windows, offering high compatibility with the AH59 system. The wide design of these brackets increases the surface contact with the profile, resulting in enhanced strength and reduced looseness at the frame corners.