MIL B87114/2B-1981
90°Sector recessed raised countersunk head screws
MIL B87114/3B-1981
Sector cheese head screws
MIL B87114/4-1983
Cross recess with pin hexagon bolts
MIL B87114/4-1983
Cross recess with pin hexagon bolts with holes on head
MIL DTL12133/9A-1997
Curved spring washers
MIL DTL12133/9A-1998
Curved spring washers
MIL DTL12133/9A-1999
Curved spring washers