Square Headed Plugs Spotted in the Wild

We could not help but show you this historical tunnel on a recent trip to London.

This is in the Shepard’s Bush station, originally built around 1900. About 121 years ago, they used square-headed plugs and cast iron panels in the structure. We continue to sell square-headed plugs to this day.

The station has undergone several renovations, so much so that today it is almost unrecognizable from the original. But behind closed doors, the old station corridors and lift shafts are still there, waiting to be explored. 

If you look at this picture, you can see the platform through the windows and Cast Iron tunnel reinforcements.

Square head plugs in those reinforcements were used to fill with concrete or move the cast iron panels.