Rock Island Replacement Screws

Set of 4 - low profile socket head screws for the following:
 
Rock Island Vise Model (screw size)
Rock Island 571  (5/16:18 x 5/8)
Rock Island 541B  (5/16:18 x 3/4)
Rock Island 572  (5/16:18 x 5/8)
Rock Island 573 (5/16:18 x 3/4)
Rock Island 542-BX (5/16:18 x 3/4)
Rock Island 574  (5/16:18 x 3/4)
Rock Island 595  (5/16:18 x 3/4)
Rock Island 577 (5/16:18 x 3/4)