ASME/ANSI B18.6.3-30-2013
Phillips concave hex head screws-Table 30
ASME/ANSI B18.6.3-30-2013
Phillips concave large hex head screws-Table 30
ASME/ANSI B18.6.3-31-2013
Phillips hex head screws-Table 31
ASME/ANSI B18.6.3-31-2013
Phillips large hex head screws-Table 31
MIL B87114/4-1983
Cross recess with pin hexagon bolts
MIL B87114/4-1983
Cross recess with pin hexagon bolts with holes on head