Belt conveyor of 2D Autocad model is given in this file. Hinge screws are specifically designed to fit hinges, with shanks that ensure a balanced and straight insertion which helps to prevent snapping and screws working loose. M8x30 hlf. screw weld a square hole and flat grind on the side opposite the screw head. Thank you for downloading the 2D Autocad DWG file from our website.