GB /T 1229 - 2006 High Strength Large Hexagon Nuts For Steel Structures
Legend | Making |
P=pitch | Carbon Steel:8,9 |
K=height of the nut | Thread:6H |
D=the nominal diameter of the thread | Surface:BLK,ZP,HDG,etc |
E=The length of the diagonal | |
S=The length of the flat |