Hex Bolts and Stud Bolt Dimensions for ASME B16.5 Class 150 Flange.

Hex Bolts, Stud Bolts for ASME B16.5 Class 150 Flanges

Bolt & Stud Bolt Diameter and Length for ASME B16.5 Class 150 Flanges

Nominal Pipe Size, NPS	Diameter of Bolts, in.	Length of Bolts, L
		Stud Bolts		Machine Bolts
		2mm Raised Face	Ring Joint	2mm Raised Face
1/2	1/2	55	...	50
3/4	1/2	65	...	50
1	1/2	65	75	55
1 1/4	1/2	70	85	55
1 1/2	1/2	70	85	65
2	5/8	85	95	70
2 1/2	5/8	90	100	75
3	5/8	90	100	75
3 1/2	5/8	90	100	75
4	5/8	90	100	75
5	3/4	95	110	85
6	3/4	100	115	85
8	3/4	110	120	90
10	7/8	115	125	100
12	7/8	120	135	100
14	1	135	145	115
16	1	135	145	115
18	1 1/8	145	160	125
20	1 1/8	160	170	140
24	1 1/4	170	185	150