Ground Screw
1. Kuyika Mwamsanga: Kutengera njira yopangira screw-in, kuchepetsa kwambiri nthawi yomanga popanda kufunikira konkriti kapena zida zovuta.
2. Kukhazikika Kwapamwamba: Kupangidwa ndi zitsulo zamphamvu kwambiri, zimakhala ndi mphamvu zotsutsa kwambiri komanso zowonongeka, zomwe zimatsimikizira kukhazikika ndi kudalirika kwa dongosolo la PV.
3. Kusinthasintha: Kutha kusinthika ku mitundu yosiyanasiyana ya dothi, kuphatikiza mchenga, dongo ndi dothi lamiyala, lotha kupirira nyengo zosiyanasiyana.
4. Kukonzekera kogwirizana ndi chilengedwe: Kumathetsa kufunikira kwa maziko a konkire achikhalidwe, kuchepetsa zotsatira za zomangamanga pa chilengedwe.
5. Kukhalitsa: Kupaka kosateteza dzimbiri kumatsimikizira kugwiritsidwa ntchito kwa nthawi yayitali pa nyengo yovuta.