Technical Info

At Birmingham Fastener, we aim to provide you with the knowledge and tools for your project. Our constantly expanding Fastener Learning Hub is full of information and insights for a variety of industries. View bolt length charts, read product comparisons, and find answers to your questions about fasteners.

This chart aligns with ANSI/AWWA c115/A21.15-99 & C110/A21.10-03. If you have questions about our product line, contact our expert sales team today.

Nominal Recommended Pipe Size	Quantity	Size	Length
3	4	5/8	2 1/2
4	8	5/8	3
6	8	3/4	3 1/2
8	8	3/4	3 1/2
10	12	7/8	4
12	12	7/8	4
14	12	1	4 1/2
16	16	1	4 1/2
18	16	1 1/8	5
20	20	1 1/8	5
24	20	1 1/4	6 1/2
30	28	1 1/4	6 1/2
36	32	1 1/2	7
42	36	1 1/2	7 1/2
48	44	1 1/2	8
54	44	1 1/2	8 1/2
60	52	1 3/4	9
64	52	1 3/4	9