Table of design properties for metric steel bolts M5 to M39
1993 1 8 nbsp 0183 32 For typical coarse pitch thread bolts the standard sizes are M3 M3 5 M4 M5 M6 M7 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 Width of nut across flats The width of the hexagon nuts across flats