US Standard Steel Gauge Equivalents in Nominal Dimensions

1. Steel thickness may vary according to industry mill standards.
2. Gauge numbers shown are for reference only.
3. Minimum allowed base metal thickness delivered to the job site in mils (0.001"). Example: 33 mils = 0.0329". Represents 95% of the design thickness.
4. Approximate thickness.
5. Thickness based on Simpson's specifications. Others are based on AISI General Provisions Standard.

Bolt
Diameter