The fact that all U. S. bolts, nuts & rivets are now made in standard sizes is one of the triumphs of Herbert Clark Hoover's career. One of his great doctrines as Secretary of Commerce was that U. S. manufacturers should get together, form trade associations and eliminate industrial waste by agreeing to make their products conform to a common gauge of pattern and quality. In 1925 the bolt, nut & rivet industry showed a disheartening loss of $3,000,000. Having organized itself as Mr. Hoover suggested, it last year made $7,000,000. So well...
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