1. Lingaliro
Bolodi yakunja yokhala ndi hexagonal ndi chowonjezera chachitsulo, chomwe chimadziwikanso kuti screw yakunja yokhala ndi hexagonal, screw yakunja yokhala ndi hexagonal kapena bolodi yakunja yokhala ndi hexagonal.

2. Chithandizo cha pamwamba
Pakupanga maboluti, kukonza pamwamba ndi chimodzi mwa zinthu zofunika kwambiri. Chingathandize kuti pamwamba pa boluti pakwaniritse zofunikira zinazake ndikuwonjezera kukana dzimbiri, mphamvu, ndi kukongola kwake.
Pali njira zambiri zochizira pamwamba pa mabolts, zomwe zimafala kwambiri ndi izi:
Kupaka Magalasi: Maboluti amamizidwa mu yankho la zinc, ndipo zinc imakutidwa pamwamba pa boluti ndi layer kudzera mu electrochemical reaction, zomwe zimapangitsa kuti zisagwe dzimbiri komanso zisagwe dzimbiri.
Kutenthetsa ndi kuviika m'madzi otentha: Mabotolo akapangidwa, amaviikidwa mu madzi osungunuka a zinc, ndipo zinc wosanjikiza umapangidwa pamwamba kudzera mu mankhwala kuti akwaniritse zotsatira zotsutsana ndi dzimbiri, zosagwira dzimbiri ndi zina.
Kuchiza kwakuda: Filimu yakuda yachitsulo chakuda imapangidwa pamwamba pa bolt kudzera mu mankhwala kuti iwonjezere kukana kwake dzimbiri.
Chithandizo cha phosphate: Lowetsani bolt mu yankho la phosphate kuti mupange filimu ya phosphate pamwamba kuti muwongolere kukana dzimbiri.
Kulimbitsa: Kudzera mu kutentha kapena kupopera pamwamba, chophimba cholimba kwambiri chimapangidwa pamwamba pa bolt kuti chikhale cholimba komanso cholimba.
Njira zomwe zili pamwambapa ndi njira zodziwika bwino zochizira pamwamba pa bolt. Njira zosiyanasiyana zochizira zimagwirizana ndi zochitika zosiyanasiyana zogwiritsira ntchito komanso zofunikira. Pochizira pamwamba pa bolt, ziyenera kuchitika motsatira miyezo ndi zofunikira zoyenera kuti zitsimikizire kuti mabolt ochizidwawo akukwaniritsa zofunikira zoyenera.

3. Kuchita bwino pamlingo
Chizindikiro cha performance grade cha bolt yakunja ya hexagonal chili ndi magawo awiri a manambala, omwe motsatana amayimira nominal tensile strength value ndi yield strength ratio ya bolt.
Mwachitsanzo, bolt yokhala ndi mulingo wa magwiridwe antchito 4.6 imatanthauza:
a. Mphamvu yokoka ya bolt imafika 400MPa;
b. Chiŵerengero cha mphamvu ya bolt ndi 0.6;
c. Mphamvu yodziwika bwino ya bolt ikufika pamlingo wa 400×0.6=240MPa
Maboluti amphamvu kwambiri a 10.9, atatenthedwa, amatha kukwaniritsa izi:
a. Mphamvu yokoka ya bolt imafika pa 1000MPa;
b. Mphamvu yodziwika bwino ya bolt imafika 1000×0.9=900MPa.

4. Kusiyana pakati pa mabotolo wamba akunja a hexagonal ndi mabotolo akunja a hexagonal amphamvu kwambiri
Mabotolo wamba a hexagonal amatha kugwiritsidwanso ntchito, koma mabotolo amphamvu kwambiri sangagwiritsidwenso ntchito.
Mabotolo amphamvu nthawi zambiri amapangidwa ndi chitsulo champhamvu kwambiri Nambala 45 (8.8s), 20MmTiB (10.9S), ndipo ndi mabotolo olimbikitsidwa. Pa mitundu ya kukangana, gwiritsani ntchito wrench ya torque kuti mugwiritse ntchito prestress yomwe yatchulidwa, ndipo pa mitundu yonyamula kupanikizika, tsegulani mutu wa torx. Mabotolo wamba nthawi zambiri amapangidwa ndi chitsulo chamba (Q235) ndipo amangofunika kulimba.
Mabotolo wamba nthawi zambiri amakhala a giredi 4.4, giredi 4.8, giredi 5.6 ndi giredi 8.8. Mabotolo amphamvu kwambiri nthawi zambiri amakhala a giredi 8.8 ndi giredi 10.9, ndipo giredi 10.9 ndiye yodziwika kwambiri.
Mabowo a screw a mabowo wamba si aakulu kwenikweni kuposa a mabowo amphamvu kwambiri. Ndipotu, mabowo wamba a mabowo ndi ang'onoang'ono.