DIN 608 Flat countersunk square neck bolts With short square Screw Thread M10 M12 P Pitch 1.5 1.75 b 26 30 dk max 19.65 24.65 min 18.35 23.35 ds max 10 12 min 9.42 11.3 Fn max 8.45 11.05 min 7.55 9.95 r max 1.5 1.8 V max 10.58 12.7 min 9.42 11.3 All information is strictly informative