Originally Posted by fireguy
I use Robertson screws in galvanized and S/S sheet metal, using a drill/driver. On occasion, I do mess up the head. Sometimes I can grab the head with vise grips, sometimes not.
I do not know if this story is true or not. Mr Robertson appproached Henry Ford about he use of his screws. Ford, realizing that if those screw were found in Ford cars, that Robertson's product would be very popular in other application. Ford asked for a royalty payment based upon every screw sold to other companies. Robertson turned Ford down. Ford used Phillips screws instead.
I have heard the same story. I think that Henry did use the Robertson screw, but had falling out with Robertson, for some reason.
Canadian Peter L. Robertson, a 27-year-old traveling salesman, patents a square-shaped socket-head screw in 1907; Ford cars in Canada use the Robertson screw in their manufacturing process
American businessman Henry F. Phillips develops the cruciform (cross) style socket-head
The Phillips screw is used in the assembly of the 1936 Cadillacs
Phillips becomes the industry standard. By the 1960s more than 200 manufacturers license the socket screw
Meanwhile, the Robertson screw is used by American furniture makers, craftsmen and hobbyists. The company is bought- out in 1968 by a U.S. conglomerate. "