Nāti rivet maitai kore waikura (whakatōtō/upoko papatahi); Nāti kume upoko/upoko papatahi; Nāti tapaono/pūtu) — he aha te tau paerewa ā-motu?

Pūwero hexagon upoko totohu: GB70.3 DIN7991

Whao kume upoko porowhita tuwhera: GB12618

Nati tapaono: GB6170 DIN934

Pūtu miro tapaono o waho: GB5783 DIN933

Nati rivet: GB17880.1