PAN SELD CROET TENGURALAR HONDO, PAN SETH PLUM BLOVEOM TENGING SCREGT, Hexark Plassom Groove Trwather, Hexagonal Flange Trwangular Trwather Screw.
Kune akasiyana siyana ezvinyorwa zvekuzvibata screws, kusanganisira diameters kubva 3mm kusvika 12mm uye kureba kubva 10mm kusvika 100mm. Iyo chaiyo yakatarwa ichachinjirwa zvinoenderana nemamiriro akasiyana ekushandisa uye zvinhu.