Legend: | Making: |
PP=pitch | Carbon Steel: 2H,2HM,7 |
m=height of the nut | 7L,8,8M,8S,10S,12 |
d=the nominal diameter of the thread | Thread:UNC |
E=The length of the diagonal | Surface:BLK,ZP,HDG,etc |
S=The length of the flat |
Note: Chemical and mechanical properties of the heavy hexagonal nut shall conform to ASTM A 563 grades of ASTM A194/ A194M, Grade 2H.
The A194 nut's grade shall have a proof load capacity equal to or greater than the ultimate tensile strength of the bolt it will be used with.