GB/T 878-1986
Paraller pins with external thread
GB/T 86-2018
Square set screws with short dog point and cone end
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 83-2018
Square set screws with long dog point and rounded end
GB/YB 818
Pan head screws with type H cross recess
GB/YB 819
Flat head screws with type H cross recess
GB/YB TM
Cross recessed truss head screws
GB 974-1976
120°Countersunk raised head screws with type H cross recess
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 70.1G-2008
Hexagon socket head cap screws with pin
GB/T 73-1985
Slotted set screws with flat point
GB/T 73-2017
Slotted set screws with flat point
GB/T 70.1-2008
Hexagon socket knurled head cap screws
GB/T 70.1-2000
Hexagon socket knurled head cap screws
GB/T 85-2018
Square set screws with long dog point
