Hel Hex ta flango Bolt watau nau'in bolt ne wanda ya zo da kai mai hexagonal da flange, wanda yake, wanda yake da fadi, lebur ne a kasan kai.
Hex shugaban ƙwallon ƙafa na iya zama kamar ƙananan abubuwan haɗin a cikin inji, amma su ne rafar kayan injiniya. Ba tare da Hex ta kai ba, duk injina, motoci har ma da gine-gine zasu faɗi baya.
Ana amfani da shi galibi don haɗa ƙananan sassa. Yana da kwanon rufi kai sukurori, cylindrical kai sukurori, Semi-countersunk kai sukurori da countersunk kai sukurori. Ƙarfin screw head screws ...
bm = 1d ninki biyu ana amfani dashi gabaɗaya don haɗin kai tsakanin sassa biyu na ƙarfe da aka haɗa; bm=1.25d da bm=1.5d biyu ingarma ana amfani da su gabaɗaya don haɗin haɗin haɗin simintin ƙarfe ...
Dangane da yanayin ƙarfin haɗin gwiwa, an raba shi zuwa ramuka na yau da kullun. Dangane da sifar kai: kai hexagonal, kai zagaye, kai murabba'i, shugaban countersunk da sauransu.