Adjustable steel prop also called steel prop,prop, post shore . It is one of the ideal support system which suit for bridges , mine,tunnels,culverts ,bridges ,culverts as well as other construction projects. It normally use with forkhead and tripod . Ace scaffold offer different type prop for choice.
It consist by inner tube with plate , outer tube with plate , nut with handle and the G pin. The surface normally in electric galvanized or hot dip galvanized.
There are holes in inner tube with same increasement for adjust length.The outer tube welded with a short thread tube, so they can adjust height by the nut and G pin. Here is more information about prop installation.