Countersunk umutwe wa hexagon sock: GB70.3 DIN7991
Fungura umutwe uzunguruka ukurura imisumari: GB12618
Hexagon nut: GB6170 DIN934
Hexagon yo hanze yinyuma yuzuye bolt: GB5783 DIN933
Imyunyungugu ya Rivet: GB17880.1
Igihe cyo kohereza: Ukwakira-20-2021