McFeely’s™ Tech Tips
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Square Drive Screws...
A Revolution in Fastener Technology!
In 1908 Robertson-Whitehouse invented the square drive screw as
the first recess-drive type fastener practical for production usage.
In continuous use for almost 90 years, the design is a North American
standard, as published in the sixth edition of Industrial Fasteners
Institute Metric and Inch Standards. |