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In 1908, P. L. Robertson began to manufacture a square recess impression in the head of a screw in Milton, Ontario, Canada. At that time, it was a revolutionary change in the fastener industry. The first patent was issued in 1909 and the last patent expired 55 years later in 1964. For his invention, P.L. Robertson screws and screwdrivers carry his name to this day.

Today, Robertson Inc., is a global supplier of standard and specialty fasteners with locations throughout the world. Through our modern manufacturing technology, ongoing product development programs, highly skilled and dedicated people and enduring commitment to excellence, Robertson Inc. continues to build on our heritage of quality and innovation.

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