Round head
Countersunk head
Raised countersunk head
Cheese
Round head with collar
Low cheese head
Raised cheese
ASME/ANSI B18.3-III.2-2012
6-Lobe 82° flat head cap screws-Table III-2
ASME/ANSI B18.6.3-2-2013
6-Lobe 80° flat head screws-Table 2
ASME/ANSI B18.3-III.2-2017
6-Lobe 82° flat head cap screws-Table III-2
ASME/ANSI B18.3-III.2-1976
6-Lobe 82° flat head cap screws-Table III-2
QIB/IND 1021
Inch 6-Lobe 80° flat head screws with pin