Plain Thumb Screws by U.S. (Imperial) Diameter
#1 Plain Thumb Screws
#2 Plain Thumb Screws
#4 Plain Thumb Screws
#6 Plain Thumb Screws
#8 Plain Thumb Screws
#10 Plain Thumb Screws
#12 Plain Thumb Screws
#14 Plain Thumb Screws
1/4 Plain Thumb Screws
5/16 Plain Thumb Screws
3/8 Plain Thumb Screws
1/2 Plain Thumb Screws
5/8 Plain Thumb Screws
1 Plain Thumb Screws
1 1/4 Plain Thumb Screws
1 1/2 Plain Thumb Screws