Secure fixing of grave head-stone - by anchor bolt with screw thread on its tapered lower end

摘要

The grave headstone (1) which may be mounted on a plinth (2) is held in place by anchor bolt (4) which has its lower end embedded in the foundation (3). The lower part of the anchor bolt has a screw thread (9) and is tapered. Before being inserted into the hole in the foundation the screw threads are coated with a substance which prevents the cement from stocking to the thread surfaces. After placing the anchor bolt in the foundation hole the surrounding space is filled with a special cement. This type of anchor bolt can be removed and re-used, if required, by unscrewing it from the foundation with aid of a pipe wrench. USE - Fixing of grave headstones.