CCAD
Pfast
Trial versionDraws ANSI & Metric holes, threads, pipe threads and fasteners in AutoCAD.
WindowsSurfText
Trial versionDraw and edit surface texture (finish) symbols.
WindowseDucts
Trial versionDraw duct runs, elbows, transitions & reducers for round duct work in AutoCAD.
WindowsWeldsym
Trial versionDraw welding symbols in AutoCAD.
WindowsSteel Shapes for AutoCAD
Trial versionDraw End, Side and Top views of common steel shapes.
Windows