retaining nut for barbell or dumbell weight —

Founded retaining nut for barbell or dumbell weight models & stl files for printing
Ring nut
avivm
M39 bolt with nuts
klemen787
TNUT M3 2020
Trigubovich
Wheel Nut Cover
GerryPB
SCREW and NUT
Prusa Research
TNut Stones  customizable
Manfred Morgner