* = screwhole Thickness, mm Diameters, mm 1 2 3 4 1.5 5* 2 8 12 15 20 25 3 5 8 10* 12* 15* 20* 4 10 15* 5 5 8 10 12* 15 20* 30* 40* 10 10 20* 30 20 20* 40 30 50 40 70 Rectangle 2×5×10 2×10×20 3×10×40 3×10×20* 3×10×60 3×20×40* 4×10×20* 4×10×30 4×10×60 4×12×40* 5×10×50* 5×20×40* 10×20×30 20×40×40