The hex nuts are in the toolbox, and all of the part numbers are assigned to them. When I go to add a smart fastener and then add to the bottom stack, the standard hex nut doesn't even show up as an option.

I have:

• Heavy Hex Jam Nut
• Heavy Hex Nut
• Hex Jam Nut
• Hex Thick Nut
• Heavy Hex Slotted Nut
• Hex Slotted Nut
• Hex Thick Slotted Nut

But I don't have "Hex Nut" as an option. Is it hidden somewhere in the options shown?