Round head
Flat round head
Cheese
T-head
Cup head square neck
Cup head nib
Cup oval neck
Low cheese head
BS 4933-5-1973
Cup head bolts
BS 4933-6-1973
Cup head nib bolts
BS 4933-7-1973
Cup square bolts
BS 325-1-1947
Black cup square neck bolts-Table 1
BS 325-2-1947
Black cup oval neck bolts-Table 2
BS 325-3-1947
Black cup nibbed bolts for iron and steel work-Table 3
BS 4933-5-2010
Cup head bolts
BS 4933-5-2015
Cup head bolts
BS 4933-2010
Cup head nib bolts
BS 4933-6-2015
Cup head nib bolts
BS 4933-7-2010
Cup square bolts
BS 4933-7-2015
Cup square bolts
