ASTM A320 Recommended Hardware

 

 

 

 

 

 

 

 

 

 

 

 

Grade Nuts Washers Grade
L7 A194 Grade 4 or 7 F436 L7
L43 A194 Grade 4 or 7 F436 L43
B8 Class 1 A194 Grade 8 SS304 B8 Class 1
B8M Class 1 A194 Grade 8M SS316 B8M Class 1
B8 Class 2 A194 Grade 8 SS304 B8 Class 2
B8M Class 2 A194 Grade 8M SS316 B8M Class 2