Birmingham Fastener Blog

Anchor Bolt Length Chart

Written by Admin | 7 November 2017

This chart is available for referencing bent anchor bolt lengths. All sizes are in inches. For a printable version of our chart, download our Anchor Bolt Length Chart PDF. To learn more about anchor bolts, check out our blog on their types and uses.

Size Length Hook Thread Length
3/8 6 1 1/2
3/8 8 1 1/2
3/8 10 1 1/2
3/8 12 1 1/2
1/2 6 1 2
1/2 8 1 2
1/2 10 1 2
1/2 12 1 2
1/2 14 1 2
1/2 16 1 2
1/2 18 1 2
1/2 20 1 2
1/2 24 1 2
5/8 6 2 4
5/8 8 2 4
5/8 10 2 4
5/8 12 2 4
5/8 14 2 4
5/8 18 2 4
5/8 20 2 4
5/8 24 2 4
3/4 6 3 4
3/4 10 3 4
3/4 12 3 4
3/4 14 3 4
3/4 16 3 4
3/4 18 3 4
3/4 24 3 4
3/4 30 3 4
3/4 36 3 4
7/8 12 3 5
7/8 14 3 5
7/8 18 3 5
7/8 24 3 5
1 14 3 6
1 15 3 6
1 16 3 6
1 18 3 6
1 20 3 6
1 24 3 6
1 30 3 6
1 36 3 6
1 36 4 6
1 1/4 18 3 6
1 1/4 24 3 6