Nut

Size
Nut

Wt. [LB]
Grade 5 Grade 8
Plain Zinc Plain Zinc
1/4" 0.007 FN025-5P FN025-5Z FN025-8P FN025-8Z
3/8" 0.016 FN038-5P FN038-5Z FN038-8P FN038-8Z
1/2" 0.038 FN050-5P FN050-5Z FN050-8P FN050-8Z
5/8" 0.073 FN063-5P FN063-5Z FN063-8P FN063-8Z
3/4" 0.119 FN075-5P FN075-5Z FN075-8P FN075-8Z
7/8" 0.190 FN088-5P FN088-5Z FN088-8P FN088-8Z
1" 0.283 FN100-5P FN100-5Z FN100-8P FN100-8Z
1 1/8" 0.403 FN113-5P FN113-5Z FN113-8P FN113-8Z
1 1/4" 0.543 FN125-5P FN125-5Z FN125-8P FN125-8Z
1 3/8" 0.730 FN138-5P FN138-5Z FN138-8P FN138-8Z
1 1/2" 0.943 FN150-5P FN150-5Z FN150-8P FN150-8Z
1 3/4" 1.51 FN175-5P FN175-5Z FN175-8P FN175-8Z
2" 2.24 FN200-5P FN200-5Z FN200-8P FN200-8Z
2 1/4" 3.39 - - FN225-8P FN225-8Z
2 1/2" 4.34 - - FN250-8P FN250-8Z