This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 M 8 x 55 hex socket round head screws, D, L.......ISO 7380 M 8 Plain washer...............................................DIN 125-1A M 8 hexagon domed cap nuts.............................DIN 1587