Autosolids
AutoSolids A2K v.4 1
AutoSolids A2K supports AutoCAD 2000/2000i/2002 and their vertical applications including AutoCAD Mechanical, Mechanical Desktop, and Architectural Desktop.
AS Mechanical v.1 30
AS Mechanical is a parametric 3D hardware library for AutoCAD(2008 and prior), which includes a complete range of hardware items from nuts and bolts to steel and aluminum beams/sections/angles to sprockets and keys and everything in between.