jigs_n_fixtures
Veteran Member
My granddad kept various widths and thicknesses of steel strap in the shop and used it to make square nuts for his farm equipment as needed. Lots easier to tap and square something up with a file, than to try to make a hex in a farm shop. He had a forge, (great grandpa was a blacksmith), and could heat treat his nuts if needed. Always fascinated me as a child.Prior to SAE, there were many odd sized nuts and bolts. A #14-20 comes to mind. And no, it's not 1/4-20. Many of the nuts were square. This would be the age of the Ford Model T and before. I've got many antique tools as well as Model T tools in my collection. One of these days, I might get my 1925 Touring put together. Some of those tools will be necessary.