=Introduction= Nuts secure bolts through holes in frames and grids.
=Challenges= Nuts come in a variety of shapes, sizes, features, and configurations.
=Approaches= Nylock nuts have been selected to reduce the tendency of frames to loosen with vibration.
=Parts=
8mm frame
M3 nylon insert lock nut
38.1mm frame
M8 nylon insert lock nut
40mm frame
M12 nylon insert lock nut
100mm frame
M25 nylon insert lock nut
=Life cycle= Stripped, rounded, or abraded nuts degrade to abrasive pellets for ball mills.
=References= * [https://www.thingiverse.com/thing:193647 NUT JOB | Nut, Bolt, Washer and Threaded Rod Factory], [https://www.thingiverse.com/apps/customizer/run?thing_id=193647 Customizer] * [https://cdn.standards.iteh.ai/samples/26382/0f8d850e82f741f5b13e5ed78b236426/ISO-4032-1999.pdf International Standard ISO 4032: Hexagon nuts, style 1 — Product grades A and B]