Grade 13 Ball Bearing P Hinge Square Finish:Matt Black British Standard BS3621 Rated Dead

British Standard BS3621 Rated Dead Lock used as a matter of course by the national house builders

Lever on Sweedor lock backplate

As the door is opened the door rides up the spiral knuckle raising the door as it opens

They form an effective barrier against the outside climate

Grade 13 Ball Bearing P Hinge Square Finish:Matt Black British Standard BS3621 Rated DeadGrade 13 Ball Bearing P Hinge, Square and Radius Options. Grade 13 Ball Bearing Hinge, Square and Radius Options. Max Load 120kg). The most popular type of door hinge on the market today. They have a CE mark and are Certifire tested. Suitable for commercial and domestic use. Ball bearing hinges have always been very popular for their smooth operation, durability, long lasting design and ability to carry heavier loads than washered hinges. For standard