Anyị nwere ụlọ ọgwụgwọ elu nke anyị, na ọkpụrụkpụ nke oyi akwa zinc na-emezu ihe achọrọ.Anyị nwere ike ịme akụkọ nyocha nke ikike, gụnyere ọgwụgwọ elu dị ka galvanizing na-ekpo ọkụ, Dacromet, electro galvanizing, esi ojii, wdg.
A na-eji kposara oghere hexagonal eme ihe n'ichepụta ngwaahịa igwe, nwere ọtụtụ uru.N'ime usoro eji na ntinye, a na-ejikarị eriri hexagonal eme ihe.Ihe dị n'ime ime nke wrench bụ ogo 90, otu njedebe dị ogologo na njedebe nke ọzọ dị mkpụmkpụ.Ọ nwere ike ịzọpụta nnukwu mbọ mgbe ị na-atụgharị skru, ọ dịkwa mfe ịwụnye na wepụ ihe nkedo.
GB usoro, Q ọkọlọtọ usoro, DIN German ọkọlọtọ usoro, IFI American ọkọlọtọ usoro, BS British ọkọlọtọ usoro, JIS Japanese ọkọlọtọ usoro, ISO mba ọkọlọtọ usoro, wdg
Na mgbakwunye na nrụpụta igwe, enwere ike itinye skru isi sọket na ngwaahịa ngwaike.Ngwaahịa eletriki nkịtị, ngwaahịa eletrọnịkị na akụrụngwa na-arụ ọrụ na ndụ ga-eji ụdị skru a.Enwere ike iji akụkụ ndị ejirila skru isi oghere maka mmepụta na mgbakọ ụgbọ ala na ụgbọ mmiri, na-arụ ọrụ dịgasị iche iche.N'oge a, skru hexagonal na-etinye aka na ngwa elektrọn na ngwa eletriki, ụlọ ọrụ kemịkalụ ọkụ eletrik, nrụpụta arịa ụlọ, injinia nchekwa mmiri na mpaghara ndị ọzọ.
Ihe a sitere n'aka onye nrụpụta nchara dị elu, nke nwere ike ịnye akụkọ nyocha ihe ikike, gụnyere Q235, 35 #, 45 #, 345B, 40Cr, 35CrmoA, igwe anaghị agba nchara 201, 304 na ihe ndị ọzọ pụrụ iche.
A na-ekewa skru hexagon a na-ejikarị eme ihe n'ụdị ndị a: pan isi hexagon soket skru, skru hexagon countersunk, na screws oghere hexagon isi cylindrical.Oghere nke skru ndị a niile bụ hexagonal, mana isi nke ịghasa nwere ụdị dị iche iche.The ọkọlọtọ nha nke oghere isi okpu kposara na-tumadi kewara n'ime M3, M4, M5, M6, M8, M10, M12, M16, M20, M25, M30, wdg The keadighi rarii pitch na unit nke kposara nke dị iche iche nkọwa bụ ihu ọma dị iche iche.N'ozuzu, a na-anọchi anya dayameta isi site na DK, ọkpụrụkpụ isi bụ k, na akụkụ diagonal na dayameta eri nwere ngosipụta kwekọrọ.
Poland, Russia, Algeria, Egypt, Ghana, Kuwait, United Arab Emirates, Kazakhstan, Malaysia, Pakistan, Philippines, South Korea, Myanmar, Thailand, Ukraine, Syria, India, United States, Turkey, Brazil, Sri Lanka, Norway, wdg.
