#PhillipsScrewDesign #FlatHeadScrewAutocad #3DScrew #AC3dCAD How to draw a Phillips Flat Head Screw in 3D Autocad using Helix and Sweep commands. There is also a technique on how to draw asymmetrical Helix. For pdf file , pls click this link For PDF file with dimensions, pls click this link https://drive.google.com/file/d/12vBlmXIMPdART7shKG90J5QP6tQnyCC8/view?usp=sharing Just so you know, I may earn a small commission if you purchase through this link, at no extra cost to you.