1 List of Standards Organizations2 Abbreviations for Use on Drawings and in Text—American National Standard3 Useful Formulas for Geometric Entities4 Running and Sliding Fits—American National Standard5 Clearance Locational Fits—American National Standard6 Transition Locational Fits—American National Standard7 Interference Locational Fits—American National Standard8 Force and Shrink Fits—American National Standard9 International Tolerance Grades10 Preferred Metric Hole Basis Clearance Fits—American National Standard11 Preferred Metric Hole Basis Transition and Interference Fits—American National Standard12 Preferred Metric Shaft Basis Clearance Fits—American National Standard13 Preferred Metric Shaft Basis Transition and Interference Fits—American National Standard14 Screw Threads, American National, Unified, and Metric15 Twist Drill Sizes—American National Standard and Metric16 Acme Threads, General Purpose17 Bolts, Nuts, and Cap Screws—Square and Hexagon—American National Standard and Metric18 Cap Screws, Slotted and Socket Head—American National Standard and Metric19 Machine Screws—American National Standard and Metric20 Keys—Square, Flat, Plain Taper, and Gib Head21 Screw Threads, Square and Acme22 Woodruff Keys—American National Standard23 Woodruff Key Sizes for Different Shaft Diameters24 Pratt and Whitney Round-End Keys25 Washers, Plain—American National Standard26 Washers, Lock—American National Standard27 Wire Gage Standards28 Taper Pins—American National Standard29 Cotter Pins—American National Standard30 Metric Equivalents31 Welding Symbols and Processes—American Welding Society Standard32 Topographic Symbols33 Piping Symbols—American National Standard34 Heating, Ventilating, and Ductwork Symbols—American National Standard35 Amer. Nat’l Std. Graphical Symbols for Electronic Diagrams36 Form and Proportion of Datum Symbols37 Form and Proportion of Geometric Characteristic Symbols38 Form and Proportion of Geometric Dimensioning Symbols39 Form and Proportion of Modifying Symbols40 Form and Proportion of Dimensioning Symbols and Letterss41 Comparison of Symbols42 Wrought Steel Pipe and Taper Pipe Threads—American National Standard43 Cast Iron Pipe, Thicknesses and Weights—American National Standard44 Cast Iron Pipe Screwed Fittings, 125 LB—American National Standard45 Cast Iron Pipe Screwed Fittings, 250 LB—American National Standard46 Cast Iron Pipe Flanges and Fittings, 125 LB—American National Standard47 Cast Iron Pipe Flanges, Drilling for Bolts and Their Lengths, 125 LB—American National Standard48 Shaft Center Sizes49 Cast Iron Pipe Flanges and Fittings, 250 LB—American National Standard50 Cast Iron Pipe Flanges, Drilling for Bolts and Their Lengths, 250 LB—American National Standard51 Types of Scales52 Additional Geometric constructions