Roundbar Bolt ine threaded ends, inogona kushandiswa seyakazara grouted kana point anchored system.Nemhando dzakasiyana dzenzungu uye washer, inogona kuiswa nekukurumidza uye inoita seimwe yeanonyanya kudhura ekudzora pasi zvigadzirwa mumaindasitiri emigodhi uye tunneling.