Metric Nylon Cap Nuts:

Drawing 1: capnutdw.jpg

All tolerances +/- .26mm
Item Number Description F H* REF.
05M040070CN M4 X 0.7 7 8
05M050080CN M5 X 0.8 8 10
05M060100CN M6 X 1.0 10 12
05M080125CN M8 X 1.25 13 15
05M100150CN M10 X 1.50 17 18
05M120175CN M12 X 1.75 18.9 20.5
05M160200CN M16 X 2.0 23.7 24.8
05M200250CN M20 X 2.5 26.7 29.1

Dimensions are in MM.