Izikulufu zekhanda le-hexagon, ezaziwa nangokuthi izikulufu ze-hex, izikulufu zesokhethi ye-hex, nezikulufu ze-hex head cap, zifaka ikhanda elinezinhlangothi eziyisithupha elinemicu yomshini eyakhiwe kusengaphambili ku-shank. Ngokuvamile zifushaniswa njenge-HH noma i-HX.
Funda kabanzi