nut and both with knurling —

Founded nut and both with knurling models & stl files for printing
Nut and bolt
cadunico
Nut and Bolt
kylemakesstuff
Micro Nut Holder
Fransiscus
knurled can cup
itsboyinspace
Nothic  One Piece
Omaha3DPrints
M39 bolt with nuts
klemen787