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The Theoretical outside diameter of a given thread. Screw threads measure slightly under basic and taps size run slightly over. |
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Otto Frei and Jules Borel, Inc. Customers Entrance 126 2nd St. Oakland, California 94607 Mailing Address: PO BOX 796, Oakland Ca. 94604 Freight Shipment Address: 119 3rd St. Oakland Ca. 94607 USA
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Otto Frei Suppling Watch Parts Since 1930
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