Copyright Goodheart-Willcox Co., Inc. Print Reading for Industry xv Unit 12 Surface Texture Symbols . . . . . 237 Surface Texture Terms . . . . . . . . . . . . . . 238 Surface Texture Symbol . . . . . . . . . . . . . 240 Application Examples for Surface Texture Symbols. . . . . . . . . . . . . . . . . . . . . . 240 Special Surface Finish Designations. . . . 243 Unit 13 Geometric Dimensioning and Tolerancing . . . . . . . . . . . . . . . 257 Geometric Dimensioning and Tolerancing Symbols. . . . . . . . . . . . . . . . . . . . . . 258 GD&T Terminology . . . . . . . . . . . . . . . . . 259 Datums . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Standardized Meaning of Size. . . . . . . . . 264 Material Condition and Boundary Applicability . . . . . . . . . . . . . . . . . . . 264 Historical Summary . . . . . . . . . . . . . . . . . 265 Form Tolerances . . . . . . . . . . . . . . . . . . . 266 Orientation Tolerances. . . . . . . . . . . . . . . 267 Profile Tolerances . . . . . . . . . . . . . . . . . . 270 Runout Tolerances. . . . . . . . . . . . . . . . . . 271 Tolerances of Location. . . . . . . . . . . . . . . 272 Composite Tolerancing . . . . . . . . . . . . . . . 274 Other Specifications . . . . . . . . . . . . . . . . . 274 Unit 14 Drawing Revision Systems . . . 289 Revision Process. . . . . . . . . . . . . . . . . . . 290 Noting the Revision . . . . . . . . . . . . . . . . . 292 Revision History Block. . . . . . . . . . . . . . . 293 Multi-Sheet Revision History . . . . . . . . . . 294 Other Revision System Features. . . . . . . 295 Section Four Industrial Drawing Types Unit 15 Detail Drawings . . . . . . . . . . . . . 305 General Terminology . . . . . . . . . . . . . . . . 306 Casting and Forging Drawings . . . . . . . . 307 Purchased Part Control Drawings . . . . . . 308 Modifying Drawings . . . . . . . . . . . . . . . . . 309 Pattern Development Drawings . . . . . . . . . 310 Welding Drawings . . . . . . . . . . . . . . . . . . . 310 Other Types of Drawings . . . . . . . . . . . . . . 313 Unit 16 Assembly Drawings . . . . . . . . . . 323 Assembly Drawings. . . . . . . . . . . . . . . . . 324 Part Identification. . . . . . . . . . . . . . . . . . . 328 Sections in Assembly Drawings . . . . . . . 328 Application Blocks . . . . . . . . . . . . . . . . . . 329 Parts List Information. . . . . . . . . . . . . . . . 329 Additional Listings . . . . . . . . . . . . . . . . . . 330 Versions in Assembly Drawings . . . . . . . 331 Section Five Specialized Parts and Prints Unit 17 Springs and Fasteners in Industrial Prints . . . . . . . . . . . 341 Springs . . . . . . . . . . . . . . . . . . . . . . . . . . 342 Threaded Fasteners . . . . . . . . . . . . . . . . 346 Non-threaded Fasteners . . . . . . . . . . . . . 349