Bolt center wheels BZ Spherical countersink

# EUWA (Std.) IAP(MWM) (Std.) d2 (mm) d3 (mm) r1 (mm) Threads
1 B14 DS 28 B1 18.5 24 14 M14 x 1.5
2 B14 ES 28 A1 18.5 24 14 M14 x 1.5
3 B14 IS 28 A1 18.5 24 14 M14 x 1.5
4 B18 DS 32 B2 21.5 27 16 M18 x 1.5
5 B18 ES 32 A2 21.5 27 16 M18 x 1.5
6 B18 IS 32 A2 21.5 27 16 M18 x 1.5
7 B22 DS 36 B3 27 32 18 M22 x 1.5 (M20 x 1.5)
8 B22 ES 36 A3 27 32 18 M22 x 1.5 (M20 x 1.5)
9 B22 IS 36 A3 27 32 18 M22 x 1.5 (M20 x 1.5)
10 B19 DS 44.4 B5 32.5 37.5 22.2 3/4″ UNF-threads
11 B19 ES 44.4 A5 32.5 37.5 22.2 3/4″ UNF-threads

Mixed centered wheels (MZ) Spherical countersink

12 M22 DS 39 B33 26 32 18 M22 x 1.5 (M20 x 1.5)
13 M22 ES 39 A33 26 32 18 M22 x 1.5 (M20 x 1.5)
14 M22 IS 39 A33 26 32 18 M22 x 1.5 (M20 x 1.5)
15 M19 DS 44.4 B5 32.5 37.5 22.2 3/4″ UNF-threads
16 M19 ES 44.4 A5 32.5 37.5 22.2 3/4″ UNF-threads

Spherical countersink                 passenger car wheels

17 E1 12 17.3 14 1/4″ UNF-threads
18 E2 12 16.5 14 1/4″ UNF-threads

Bolt hole centered wheels BZ Conical countersink

# EUWA (Std.) IAP(MWM) (Std.) d2 (mm) d3 (mm) angle (α) Threads
1 B23 DC 80 B17 25.4 31 80° 7/84″ UNF-threads
2 B23 EC 80 A17 25.4 31 80° 7/84″ UNF-threads
3 B23 IC 80 A17 25.4 31 80° 7/84″ UNF-threads

Mixed centered wheels (MZ) Conical countersink

4 M23 EC 80 A37 26 31 80° 7/84″ UNF-threads
5 M23 IC 80 A37 26 31 80° 7/84″ UNF-threads
6 M23 DC 80 B37 26 31 80° 7/84″ UNF-threads

Conical countersink                 passenger car wheels

7   E3 10.5 14 60° M10 x 1.25
8    E4 13.5   16.5  60°  M12 x 1.25
9    E5  13.6  17 60°   M12 x 1.25
10    E6  14  18  60°   M12 x 1.5
11    E7  14.5  18.5  60° M12 x 1.5 
12    E8  15  17.5  60° M12 x 1.5 
13    E9  15  18  60°  M12 x 1.5
14    E10  16  18.5  60°  M12 x 1.5
15    E19  17.5  20.8 60°  M14 x 1.5