Slot
Hex chamfered single face
Hex with shoulder
Hex chamfered double faces
AN 320-1999
Hexagon slotted thin nuts-washer faced
AN 150426-1994
Slotted hex nuts-washer faced
AN 150426-2000
ASME/ASNI B18.2.2-1.1.1.6-2022
Hexagon slotted nuts-washer faced-Table 1.1.1-6