Round head
Countersunk head
Raised countersunk head
Cheese
Low cheese head
Raised cheese
Cheese with hole
GB/T 9074.1-1988
Cross recessed pan head screws and plain washers assemblies
GB/T 9074.2-1988
Cross recessed pan head screws and external teeth serrated lock washers assemblies
GB/T 9074.3-1988
Cross recessed pan head screws and spring washers assemblies
GB/T 9074.4-1988
Cross recessed pan head screws, plain and spring washers assemblies
GB/T 9074.5-1988
Cross recessed small pan head screw and plain washer assemblies
GB/T 9074.6-1988
Cross recessed small pan head screw and large plain washer assemblies
GB/T 9074.7-1988
Cross recessed small pan head screw and spring washer assemblies
GB/T 9074.8-1988
Cross recessed small pan head screw, plain and spring washer assemblies
GB/T 9074.9-1988
90° Cross recessed countersunk head screw and countersunk serrated lock washer assemblies
GB/T 9074.10-1988
90° Cross recessed raised countersunk head screw and countersunk serrate lock washer assemblies
ISO 10644-2009
Slotted cheese head screws and small plain washer assemblies
ISO 10644-2009
Slotted cheese head screws and plain washer assemblies
ISO 10644-2009
Slotted cheese head screws and large plain washer assemblies
ISO 10644-2009
Slotted pan head screws and plain washer assemblies
ISO 10644-2009
Slotted pan head screws and large plain washer assemblies
ISO 10644-2009
Hexagon socket heads cap screws and small plain washer assemblies
ISO 10644-2009
Hexagon socket heads cap screws and large plain washer assemblies
ISO 10644-2009
Hexagon socket knurled heads cap screws and small plain washer assemblies
ISO 10644-2009
Hexagon socket knurled heads cap screws and large plain washer assemblies
ISO 10644-2009
Pan head screws with type H cross recess and plain washer assemblies