1.Material: Motoci gabaɗaya ana yin su ne da kayan aiki kamar ƙarfe da bakin karfe, kuma kusoshi na kayan daban-daban suna da halaye daban-daban kamar juriya da ƙarfi da ƙarfi.
Nau'in nau'in 2.Head: Nau'in nau'in nau'in bolts na motoci sun haɗa da kai hexagonal, kai mai zagaye, kai mai lebur, da dai sauransu daban-daban na kai sun dace da yanayin shigarwa daban-daban da bukatun.
babbar motar dakon kaya
3.Thread: Zaren bolts na manyan motoci sun kasu kashi-kashi da zare masu kyau, kuma zaren daban-daban sun dace da hanyoyi da kayan haɗi daban-daban.
Motoci dabaran
4.Length: Tsawon bolts din manyan motoci shima muhimmin abu ne wajen bambancewa, kuma kusoshi masu tsayi daban-daban sun dace da mahaɗa daban-daban da kauri.
5.Grade: Matsayin bolts ɗin manyan motoci shima muhimmin abu ne mai ban sha'awa, gabaɗaya ya kasu kashi 10.9, 12.9, da sauransu. Maki daban-daban na kusoshi suna da ƙarfi da ƙarfi daban-daban.
Lokacin aikawa: Afrilu-05-2023