"Size","Pitch (coarse)","Fine pitch","Stress area As (mm²)"
"M3","0.5","—","5.03"
"M4","0.7","—","8.78"
"M5","0.8","—","14.2"
"M6","1","—","20.1"
"M8","1.25","1","36.6"
"M10","1.5","1.25 / 1","58"
"M12","1.75","1.5 / 1.25","84.3"
"M14","2","1.5","115"
"M16","2","1.5","157"
"M18","2.5","1.5","192"
"M20","2.5","1.5","245"
"M22","2.5","1.5","303"
"M24","3","2","353"
"Reference only — confirm against drawing. ISO 261 · ISO 898-1 (stress area). REL India"