Grade 4.8 Carbon Steel Black Allen Bolt, wanda kuma ake kira hexagon socket head bolt, cap head screw da hexagon socket head screw, suna da mabambantan sunaye, amma suna nufin iri ɗaya.Abubuwan da aka saba amfani da su sun haɗa da maki 4.8, 8.8 da kuma 10.9.Ana kuma kiransa socket head screw da socket head bolt.Kansa hexagonal ne kuma silindari.
Gabaɗaya ana amfani da bokitin soket na hex a wasu kayan aikin injin da sassan injin.
Suna da ƙarin ƙarfin haɗin gwiwa don tabbatar da haɗin gwiwa yana da kyau.
Kuma galibi ana amfani da shi tare da maƙarƙashiyar kai don ɗaure ko sassauta.
Nau'o'in Hex socket bolts:
1) Ta kayan aiki: Carbon Karfe
2) Ta maki:4.8
3)Ta hanyar maganin saman: Baƙar fata
Gabaɗaya babban sa hex socket cap bolt sun fi shahara a kasuwanni, kamar 4.8 grade, 8.8 grade, 10.9 grade.
