Door bolt socket - is of thin plate material e.g. spring-steel, and hooks behind profiled frame
摘要
<p>The bolt-socket (1) has an arrester strip. It is of thin plate material, typically spring steel, and can be of Omega profile. It has portions (10) hooking behind a profiled frame member (6) and is between 0.4 and 0.5 mm thick.</p>
