711.09 Typical Bolt Markings

St Louis Bolt A325 Type 3 [Weather steel] Note the A325 is underlined for type 3

Nucor A325 Type 3 [Weather steel] Note the A325 is underlined for type 3

Typical Bolt Markings


Nucor A325 Type 1 Galvanized

Gaffney A325 Type 3 [Weather steel] Note the A325 is underlined for type 3

Typical Nut Markings



Unytite Nut - Grade DH3 [3 stands for type 3 weathering steel]

Unytite Nut - Grade DH

Typical Bolt Markings

Infasco Type DH [galvanized]

Texas Bolt Company Nut Type 2H [galvanized]