These are Rock Island jaws that fit the 573 & 593 vises, and are made here, in a USA Show, heat treated, and serrated, just like the originals. These jaws measure 4" Wide, 1 1/4"High and 5/8"Thick with hole spacing of 2 3/4" C-C. With the jaws will come 4, 5/16-3/4 low head cap screws 

  Shipping will be Flat Rate to the 50 states.  Thanks for looking.