Round head
Countersunk head
Raised countersunk head
Cheese
Round head with collar
Low cheese head
Raised cheese
GB/T 6191-1986
6-Lobe cap screws,class 8.8
GB/T 2674-2004
6-Lobe socket 90° oval head screws
GB/T 2673-2007
6-Lobe 90° flat head screws
GB/T 2672-2004
6-Lobe pan head screws
GB/T 6190-1986
6-Lobe cap screws,class 4.8
GB/T 2671.2-2004
6-Lobe cap screws
GB/T 2671.2-2004
6-Lobe knurled cap screws
GB/T 2671.1-2004
6-Lobe low cap screws
GB/T 2672-1986
6-Lobe pan head screws
GB/T 2673-1986
6-Lobe 90° flat head screws
GB/T 2674-1986
6-Lobe socket 90° oval head screws
GB/T 2671.1-2017
6-Lobe low cap screws
GB/T 2671.2-2017
6-Lobe cap screws
GB/T 2671.2-2017
6-Lobe knurled cap screws
GB/T 2672-2017
6-Lobe pan head screws
GB/T 2674-2017
6-Lobe 90° oval head screws
GB/T 2672G-2017
6-Lobe pan head screws with pin
GB/T 2673G-2007
6-Lobe 90° flat head screws with pin
GB/T 2673.2-2020
Hexalobular socket high countersunk head screws