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American National Standard Screw Threads

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American National Standard Screw Threads CS25-30 Special Screw Threads U. S. DEPARTMENT OF COMMERCE BUREAU OF STANDARDS AMERICAN NATIONAL SPECIAL SCREW THREADS COMMERCIAL STANDARD CS25-30 ELIMINATION OF WASTE Through SIMPLIFIED COMMERCIAL PRACTICE Below are described some of the series of publications of the Department of Commerce which deal with various phases of waste elimination. Simplified Practice Recommendations. These present in detail the development of programs to eliminate unnecessary variety in sizes, dimensions, styles, and types of over 100 commodities. They also contain lists of associations and individuals who have indicated their intention to adhere to the recommendations. These simplified schedules, as formulated and approved by the industries, are indorsed by the Department of Commerce. Commercial Standards. These are developed by various industries under a procedure similar to that of simplified practice recom- mendations. They are, however, primarily concerned with considerations of grade, quality, and such other characteristics as are outside the scope of dimensional simplification. American Marine Standards. These are promulgated by the American Marine Standards Committee, which is controlled by the marine industry and administered as a unit of the division of simplified practice. Their object is to promote economy in construction, equipment, maintenance, and operation of ships. In general, they provide for simplification and improvement of design, interchangeability of parts, and minimum requisites of quality for efficient and safe operation. Lists of the publications in each of the above series can be obtained by. applying to the Division of Trade Standards, Bureau of Standards, Washington, D. C. U. S. DEPARTMENT OF COMMERCE R. P, LAMONT, Secretary BUREAU OF STANDARDS GEORGE K. BURGESS, Director AMERICAN NATIONAL SPECIAL SCREW THREADS COMMERCIAL STANDARD CS25-30 [Issued September 19, 1930] Effective Date, July 1, 1930 UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 1930 For sale by the Superintendent of Documents, Washington, D. C. Price 15 cents NOTE This commercial standard presents in compact form the tables of dimensions of special screw threads having the American National form of thread (60°) as published in the 1928 Report of the National Screw Thread Commission (Secs. IV and XD), Bureau of Standards Miscellaneous Publication No. 89 ^ and is identical therewith. Figure and table numbers are identical with those in the Report of the National Screw Thread Commission for convenience in making references. CONTENTS Page Page Acceptors in Commercial standards service 22 Commercial standard 1 Organization and duties of standing committee. _ 23 American National 12-pitch thread series 2 Your cooperation 23 Screw threads of special diameters, pitches, Acceptance of commercial standard 25 and lengths of engagement. 8 To the acceptor 26 History of project 22 Request for commercial standards 27 Standing committee 22 List of commercial standards 28 Effective date 22 1 The complete report may be procured from the Superiutendent of Documents, U. S. Government Printing Office, Washington, D. C., at 50 cents per copy. II COMMERCIAL STANDARD CS25-30 ACCEPTORS ASSOCIATIONS Eastwood Wire Corporation, Belleville, N. J. Economy Engineering Co., The, Willoughby, Ohio. American Oil Burner Association (Inc.)? New York, Electric Boat Co., Groton, Conn. N. Y. (in principle). Erie Forge Co., Erie Pa. National Hardware Association of the United States, Essley Machinery Co., The E. L., Chicago, 111. Philadelphia, Pa. Eureka Tool Machine Co., Newark, N. J. National Machine Tool Builders’ Association, Cincin- Federal Huber Co., Plano, Kendall County, 111. nati, Ohio. Fischer Special Manufacturing Co., The, Cincinnati, National Retail Hardware Association,Indianapolis, Ind. Ohio. Screw Machine Products Association, eastern division, Flannery Bolt Co., Bridgeville. Pa. New Haven, Conn. Fortney Manufacturing Co., Newark, N. J. FIRMS Foster Machine Co., Elkhart, Ind. Adams Co., The, Dubuque, Iowa. Fostoria Screw Co., The, Fostoria, Ohio. Allied Products Corporation, Victor-Peninsular divi- GaskeU. & Son (Inc.), William, Brooklyn, N. Y. sion, Detroit, Mich. General Manufacturing Co., The, Waterbury, Conn. Almond Manufacturing Co., T. R., Ashburnham, Mass. Geometric Tool Co., The, New Haven, Conn. Alvord-Polk Tool Co., Millersburg, Pa. Gibbs & Cox (Inc.), New York, N. Y. American Manganese Bronze Co., Philadelphia, Pa. Gisholt Machine Co., Madison, Wis. American Tool & Manufacturing Co., Urbana, Ohio. Globe Products Co., The, Cleveland, Ohio. Armstrong Manufacturing Co., The, Bridgeport, Conn. Grabler Manufacturing Co., The, Cleveland, Ohio. Arrov/ Head Steel Products Co., Minneapolis, Minn, Greenfield Tap & Die Corporation, Greenfield, Mass. (in principle). Gurley, W. & L. E., Troy, N. Y. Autocar Co., Ardmore, Pa. Hardinge Bros., Chicago, 111. Babson Dow Manufacturing Co., Roxbury, Mass. Harper Co., H. M., Chicago, 111. Bard Manufacturing Co., Royersford, Pa. Harrington Co., The, Philadelphia, Pa. Barnes Drill Co., Rockford, 111. Hartford Machine Screw Co., Hartford, Conn. Bell Co. (Inc.), The David, Buffalo, N. Y. Haynes Stellite Co., Kokomo, Ind. Bethlehem Shipbuilding Corporation (Ltd.), Quincy, Howe Chain Co., Muskegon, Mich. Mass. Independent Contact Manufacturing Co., Union Cit}-, Biglow & Co. (Inc.), L. C., New York, N. Y. N. J. Brewer Titchener Corporation, Cortland, N. Y. Indicating Calipers Corporation, New York, N. Y. Brightman Manufacturing Co., The, South Columbus, Jenckes Knitting Machine Co., Pawtucket, R. I. Ohio. John-sons Gage W^orks, Hartford, Conn. Brightman Nut & Manufacturing Co., Sandusky, Ohio. Johnson Rule Manufacturing Co., E. P., Chicago, 111. Brill Co., The J. G., Philadelphia, Pa. Kalman Steel Co., Chicago, 111. Buffalo Bolt Co., North Tonav/anda, N. Y. Kramer Co., C. P., Chicago, 111. Chase Cos. (Inc.), Waterbury Manufacturing Co. Lamson & Sessions Co., The, Cleveland, Ohio. division, Waterbury, Conn. Landis Machine Co., Waynesboro, Pa. Chicago Screw Co., Chicago, 111. Lang Tool Co., The C. W. Da5don, Ohio. Clark Bros. Bolt Co., Milldale, Conn. Lanman Co., The E. B., East Chicago, Ind. Clendenin Bros. (Inc.), Baltimore, Md. Lehmann Machine Co., St. Louis, Mo. Cleveland Twist Drill Co., The, Cleveland, Ohio. Mac Lean-Fogg Lock Nut Co., Chicago, 111. Cleveland Wrought Products Co., The, Cleveland, Macy & Co. (Inc.), R. H., New York, N. Y. Ohio. Manufacturers’ & Inventors’ Electric Co., New York, Colt’s Patent Fire Arms Manufacturing Co., Hartford, N. Y. Conn. Maryland Bolt & Nut Co., The, Mount Washington, Columbia Nut & Bolt Co., Bridgeport, Conn. Baltimore, Md. Columbus Bolt Works Co., The, Columbus, Ohio. Meisel Press Manufacturing Co., Boston, Mass. Conant & Donelson Co., Conway, Mass. Mitchell Engineering Co., The, Springfield, Ohio. Corbin Screw Corporation, The, New Britain, Conn. Morse Twist Drill & Machine Co., New Bedford, Mass. Cox & Sons Co., The, Bridgeton, N. J. (in principle). Murchey Machine & Tool Co., Detroit, Mich. Dallett Co., The, Philadelphia, Pa. Napoleon Products Co., The, Napoleon, Ohio. Davenport Machine Tool Co. (Inc.), Rochester, N. Y. Narragansett Machine Co., Pawtucket, R. I. Detroit Screw Works, Detroit, Mich. Nash Motors Co., The, Racine, Wis. Ill IV NATIONAL BUREAU OF STANDARDS National Lock Co., Rockford, 111. Standard Screw Co., Chicago, 111. National Machine Products Co., Detroit, Mich. Standard Shop Equipment Co., Philadelphia, Pa. National Marine Lamp Co., The, Forestville, Conn. Starrett Co., The L. S. Athol, Mass. Non-Pareil Die Corporation, Camden, N. J. Steele & Johnson Manufacturing Co., Waterbury, Northwest Automatic Products Corporation, Minne- Conn. apolis, Minn. Steward & Romaine Manufacturing Co., Philadelphia, Packard Motor Car Co., Detroit, Mich. Pa. Penn Screw & Machine Works, Philadelphia, Pa. Strong, Carlisle & Hammond Co., The, Cleveland, PheoU Manufacturing Co., Chicago, 111. Ohio. Philadelphia Hardware & Malleable Iron Works (Inc.), Superior Machine & Engineering Co., Detroit, Mich. Philadelphia, Pa. Taft-Peirce Manufacturing Co., Woonsocket, R. I. Pittsburgh Screw & Bolt Corporation, N. S. Pittsburgh, Taylor Instrument Cos., Rochester, N. Y. Pa. Triplex Machine Tool Co., New York, N. Y. Ramsdell Manufacturing Co., The, Cleveland, Ohio. Triplex Screw Co., Cleveland, Ohio. Reed & Prince Manufacturing Co., Worcester, Mass. Union Twist DriU Co., Butterfield division, Derby Reed Small Tool V/orks, Worcester, Mass. Line, Vt. Rhode Island Tool Co., Providence, R. I. United States Aluminum Co., The, Pittsburgh, Pa. Rickert-Shafer Co., Erie, Pa. Upson-Walton Co., The, Cleveland, Ohio. Russell, BurdsaU & Ward Bolt & Nut Co., Port Ches- Van Denburgh, L. W., Newark, N. J. ter, N. Y. Van Keuren Co., The, Watertown, Mass. St. Louis Screw & Bolt Co., St. Louis, Mo. Ware Bros. (Chicago RoUer Skate Co.), Chicago, IlL Scovill Manufacturing Co., Waterbury, Conn. Western Automatic Machine Screw Co., Elyria, Ohio. Screw Machine Specialty Co., Pittsburgh, Pa. Western Screw-Products Co., St. Louis, Mo. Sessions & Son, J. H., Bristol, Conn. White Motor Co., The, Cleveland, Ohio. Seymour Brass Turning Co., Seymour, Conn. Williams & Co., J. H., Buffalo, N. Y. Sherman-Klove Co., Chicago, 111. Worcester Taper Pin Co., Worcester, Mass. Skelly Bolt Co. (Inc.), Thos. P., Philadelphia, Pa. GOVERNMENT Smalley General Co., Bay City, Mich. Standard Nut & Bolt Co., Valley Falls, R. I. Navy Department, Washington, D. C. AMERICAN NATIONAL SPECIAL SCREW THREADS COMMERCIAL STANDARD CS25-30 At the request of the National
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