Hex Bolt Nut Lengths for EN 1092-1 Flanges

Flange D. N.	CLASS PN-6		CLASS PN-10		CLASS PN-16		CLASS PN-25		CLASS PN-40
Flange D. N.	Size	No	Size	No	Size	No	Size	No	Size	No
10	M 10 X 40	4	M 12 X 45	4	M 12 X 45	4	M 12 X 50	4	M 10 X 50	4
15	M 10 X 40	4	M 12 X 45	4	M 12 X 45	4	M 12 X 50	4	M 12 X 50	4
20	M 10 X 45	4	M 12 X 50	4	M 12 X 50	4	M 12 X 55	4	M 12 X 55	4
25	M 10 X 45	4	M 12 X 50	4	M 12 X 50	4	M 12 X 55	4	M 12 X 55	4
32	M 12 X 50	4	M 16 X 55	4	M 16 X 55	4	M 16 X 55	4	M 16 X 55	4
40	M 12 X 50	4	M 16 X 55	4	M 16 X 55	4	M 16 X 55	4	M 16 X 55	4
50	M 12 X 50	4	M 16 X 55	4	M 16 X 55	4	M 16 X 60	4	M 16 X 60	4
65	M 12 X 50	4	M 16 X 55	4	M 16 X 55	4	M 16 X 65	8	M 16 X 65	8
80	M 16 X 60	4	M 16 X 60	4	M 16 X 60	8	M 16 X 70	8	M 16 X 70	8
100	M 16 X 60	4	M 16 X 60	8	M 16 X 60	8	M 20 X 70	8	M 20 X 70	8
125	M 16 X 60	8	M 16 X 65	8	M 16 X 65	8	M 24 X 80	8	M 24 X 80	8
150	M 16 X 60	8	M 20 X 70	8	M 20 X 70	8	M 24 X 90	8	M 24 X 90	8
200	M 16 X 65	8	M 20 X 70	8	M 20 X 80	12	M 24 X 90	12	M 27 X 100	12
250	M 16 X 70	12	M 20 X 80	12	M 24 X 90	12	M 27 X 100	12	M 30 X 110	12
300	M 20 X 70	12	M 20 X 80	12	M 24 X 90	12	M 27 X 100	16	M 30 X 120	16
350	M 20 X 80	12	M 20 X 80	16	M 24 X 100	16	M 30 X 110	16	M 33 X 130	16
400	M 20 X 80	16	M 24 X 90	16	M 27 X 110	16	M 33 X 120	16	M 36 X 140	16
500	M 20 X 90	20	M 24 X 110	20	M 30 X 110	20	M 33 X 130	20	M 39 X 150	20