Gulu la Bolts

1.Sanjani ndi mutu:

(1) Bawuti yamutu wa hexagonal: Uwu ndiye mtundu wofala kwambiri wa bawuti. Mutu wake ndi wa hexagonal, ndipo ukhoza kumangika mosavuta kapena kumasulidwa ndi wrench ya hex. Amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana monga kupanga makina, magalimoto, ndi zomangamanga, monga kulumikiza midadada ya silinda yama injini yamagalimoto.

(2) Countersunk bolt: Mutu wake ndi wozungulira ndipo ukhoza kumira kwathunthu pamwamba pa gawo lolumikizidwa, ndikupangitsa kuti kugwirizanako kukhale kopanda pake. Mtundu uwu wa bawuti ndi wothandiza kwambiri pakafunika mawonekedwe, monga pomanga mipando ina, ma bolts owukira amagwiritsidwa ntchito kuonetsetsa kuti pakhale malo osalala komanso okongola.

(3) Pan mutu wa bawuti: Mutu ndi wofanana ndi disc, wowoneka bwino kwambiri kuposa ma bawuti amutu wa hexagonal, ndipo ukhoza kupereka malo olumikizana okulirapo akamangika. Nthawi zambiri amagwiritsidwa ntchito pazinthu zolumikizira zomwe zimafunikira mawonekedwe apamwamba komanso zimafunikanso kupirira mphamvu zina, monga kukonza chipolopolo chakunja cha zida zamagetsi.

2.Yosankhidwa ndi mbiri ya ulusi
（1）Boloti ya ulusi wokhuthala: Ulusi wake umakhala wokulirapo ndipo ngodya ya ulusi nayonso ndi yokulirapo, kotero poyerekeza ndi bawuti yabwino kwambiri, ntchito yake yodzitsekera ndiyoyipitsitsa pang’ono, koma ili ndi mphamvu zambiri ndipo ndiyosavuta kusweka. Nthawi zina pamene mphamvu yolumikizana kwambiri imafunikira komanso kulondola kwambiri sikofunikira, monga pomanga kulumikizana kwamapangidwe, imagwiritsidwa ntchito nthawi zambiri.
（2）Bawuti yabwino kwambiri ya ulusi: Bawuti ya ulusi wabwino imakhala ndi phula laling’ono ndi ngodya yaing’ono ya ulusi, choncho imakhala ndi ntchito yodzitsekera yabwino ndipo imatha kupirira mphamvu zazikulu zam’mbali. Amagwiritsidwa ntchito nthawi zomwe zimafuna kulumikizana ndendende kapena kupirira kugwedezeka ndi kukhudzidwa, monga kulumikiza zida zolondola.

3.Yosankhidwa ndi kalasi ya ntchito
（1）Mabawuti 4.8 wamba: amakhala ndi magwiridwe antchito otsika ndipo amagwiritsidwa ntchito nthawi zina pomwe mphamvu zolumikizira sizili zokwera kwambiri, monga zida zapanyumba wamba, kulumikizana kwachitsulo chosavuta, ndi zina zambiri.
（2）Maboti amphamvu kwambiri: Amakhala ndi mphamvu zambiri ndipo nthawi zambiri amagwiritsidwa ntchito polumikizana ndi zomangamanga zomwe zimatha kupirira mphamvu zazikulu zomangika kapena zometa ubweya, monga nyumba zamapangidwe azitsulo, milatho ikuluikulu, makina olemera, ndi zina zambiri, kuonetsetsa chitetezo ndi kukhazikika kwa kapangidwe kake.