Ntawm cov kev sib txuas uas nqa cov khoom thauj khoom, xws li lawj ledgers lossis railing posts, siv los ntawm-bolts lossis lag screws. Los ntawm-bolts muaj zog dua thiab yuav tsum tau siv thaum ua tau. Rau qhov kev sib txuas hnyav tshaj plaws ntawm lub lawj, xws li cov ntaub ntawv xa mus rau lub tsev lossis xa ntawv, siv 1/2-nti bolts lossis lags.
Lub bolts loj npaum li cas los siv rau cov ncej lawj?
Thaum tus lej feem ntau tso cai rau 3/8-inch-inch-inch bolts rau fastening braces rau posts, beams, los yog joists, kuv siv 1/2-inch-inch bolts hloov. Tsis muaj kev nplua rau kev tshaj lij, thiab nws yooj yim dua los khaws ib lub bolts loj ntawm tes (1/2-nti bolts yuav tsum tau rau ntau lwm qhov sib txuas).
Cov bolts tuaj yeem siv rau ntawm lawj?
Cov bolts tuaj yeem yog PITA rau daim ntawv thov lawj. Yog hais tias lub taub hau square raug tsav mus rau hauv cov ntoo, thiab cov ntoo qhuav tawm (uas yog feem ntau nrog PT lumber), lub taub hau square yuav tsis nruj txaus los tiv thaiv kev sib hloov ntawm lub taub hau thaum koj zawm lub txiv ntoo.
Ntev npaum li cas cov bolts yuav tsum?
Feem ntau, lub tsheb thauj khoom qhov ntau thiab tsawg yog li ntawm10 txog 3/4 "nyob rau hauv txoj kab uas hla thaum lub sijhawm ntev los ntawm 1/2 "mus rau 20" -tsuas yog qhov loj dua muaj nyob hauv ntev ntev.
Lub tsheb thauj khoom hnyav npaum li cas tuaj yeem tuav tau?
Hais tau hais tias, ib zaug ntsia, lawv tuaj yeem tuav tau ntau qhov hnyav. Piv txwv li, Qib 5 carriage bolt ua los ntawm carbon steel muaj lub zog tensile ntawm 120, 000psi los yog 8437 kilogram-force ib square meter thiab cov ntaub ntawv pov thawj load zog ntawm 85, 000psi los yog 5, 976 kilogram-force. ib square meter
