These sets contain a selection of hexagon bolts, screws and nuts in the following sizes
Set 9 T 31 contains U.N.F. Steel Grade 5
¼” x 5/8” –x3/4” –x1 –x1.1/4”
5/16” x 1” –x1.1/2”
3/8” x 1” –x1.1/2”
½” x 1.1/4”
Set 9 T 32 contains U.N.C. Steel Grade 5
¼” x 5/8” –x3/4” –x1” –x1.1/4”
5/16” x 1” –x1.1/2”
3/8” x 1” –x1.1/2”
½” x 1.1/4”