BEVEL: 1/4" thru 1 1/4" bolt dia.
FLAT: USS, SAE, FENDER, MACHINE SCREW, AN-MS-NAS SPECS, MINIATURE: #0000 thru 3" dia.
FINISHING (Countersunk): #6 thru #16 dia.
LOCK: SPLIT, TOOTH, HI COLLAR, BELLEVILLE: #2 thru 1" dia.
MALLEABLE: 3/8" thru 1 1/2" dia.