Hi List, I cranked in "2H Nuts" into Google and this is one of the item that came up. <_ASTM A194 Heavy Hex Nuts,A194 Nuts,2H Nuts,A194 2H Nuts,Gr.8 Nuts,A194 Gr.8 Nuts,Gr.8M Nuts,A194 Gr.8M Nuts,Gr.4 Nuts,Gr.7 Nu.._ (http://www.goasf.com/SpecShts/2NutsStk.html) > Francis Maciel Santa Maria, CA