The Anonymous Widower

Mackays Make the First Brass Headed Coach Screw

I did try to make one myself, but I didn’t have a strong enough die to cut the thread after I’d taken the head off the coach screw. So I took the screw and nut to Mackays in Cambridge, when I visited the city on Tuesday.

They are basically a very good tool shop, but they also have a small engineering workshop out the back.

This is what they created for me in a few minutes.

Brass Dome-Headed Coach Screw

Unfortunately, they didn’t have any of the unobtainable oversized washers.

But it installed perfectly to screw the staircase to the wall.

The Installed Coach Screw

Note the old brass-painted one at the left. I’ll now be ordering another two.

March 10, 2011 - Posted by AnonW | World | Cambridge, Engineering