Bolt-Up Chart for Class 900 Flange

Series 900 Flange (Estimating Information Only)
Pipe Size	Wrench Size	Flange Bolts		Raised Face	Ring Joint
Pipe Size	Wrench Size	Qty.	Dia.	Stud Length	Stud Length
1/2	1 ^1/4	4	3/4	4 ^1/4	4 ^1/4
3/4	1 ^1/4	4	3/4	4^1/2	4^1/2
1	1 ^7/16	4	7/8	5	5
1 ^1/4	1 ^7/16	4	7/8	5	5
1 ^1/2	1 ^5/8	4	1	5 ^1/2	5^1./2
2	1 ^7/16	8	7/8	5 ^3/4	6
2 ^1/2	1 ^5/8	8	1 ^1/8	6 ^1/4	6 ^1/2
3	1 ^7/16	8	1 ^1/4	5 ^3/4	6
4	1 ^13/16	8	1 ^1/8	6 ^3/4	7
5	2	8	1 ^1/4	7 ^1/2	7 ^3/4
6	1 ^13/16	12	1 ^1/8	7 ^3/4	7 ^3/4
8	2 ^3/16	12	1^3/8	8 ^3/4	9
10	2 ^3/16	16	1 ^3/8	9 ^1/4	9 ^1/2
12	2 ^3/16	20	1 ^3/8	10	10 ^1/4
14	2 ^5/8	20	1 ^1/2	10 ^3/4	11 ^1/4
16	2 ^9/16	20	1 ^5/8	11 ^1/4	11 ^3/4
18	2 ^15/16	20	1 ^7/8	13	13 ^1/2
20	3 ^1/8	20	2	13 ^3/4	14 ^1/4
24	3 ^7/8	20	2 ^1/2	17 ^1/4	18

ASME B16.5 Class 900 Flange Bolt-Up Chart