Content with EN 14399 Part 6

Selected sizes used for CE (UKCA) Marking under BS EN 14399 Size (d) M12 M16 M20 M22 M24 M27 M30 M36 d1 13-13.27 17-17.27 21-21.33 23-23.33 25-25.33 28-28.52 31-31.62 37-37.62 d2 23.48-24 29.48-30 36.38-37 38.38-39 43.38-44 49.00-50 54.80-56 64.80-66 h (nom.) 3 4 4 4 4 5 5 6 h 2.7-3.3 3.7-4.3 3.7-4.3 3.7-4.3 3.7-4.3 4.4-5.6 4.4-5.6 5.4-6.6 e 0.5-1.0 0.75-1.5 0.75-1.5 0.75-1.5 0.75-1.5 1-2.0 1-2.0 1.25-2.5 c 1.6-1.9 1.6-1.9 2.
Read more about BS EN 14399-6 Plain chamfer washers - Basic dimensions ↬