GB/T 9074.11-1988
Cross recessed hexagon bolt with indentation and plain washer assemblies
GB/T 9074.12-1988
Cross recessed hexagon head bolt with indentation and spring washer assemblies
GB/T 9074.13-1988
Cross recessed hexagon head bolt with indentation , spring and plain washer assemblies
ISO 10644-S2-2009
Hexagon head bolts and plain washer assemblies-ISO 4014
ISO 10644-S2-2009
Hexagon head bolts and large plain washer assemblies-ISO 4014
ISO 10644-S1-2009
Hexagon head bolts-Reduced shank and plain washer assemblies
ISO 10644-S1-2009
Hexagon head bolts-Reduced shank and large plain washer assemblies
ISO 10644-S1-2009
Hexagon head screws and plain washer assemblies-ISO 4017
ISO 10644-S1-2009
Hexagon head screws and large plain washer assemblies-ISO 4017
DIN 6900-1-1990
Hexagon head bolts and small plain washer assemblies
DIN 6900-1-1990
Hexagon head bolts and plain washer assemblies
DIN 6900-1-1990
Hexagon head bolts and large plain washer assemblies
DIN 6900-3-1990
Hexagon head bolts,plain and spring lock washer assemblies
DIN 6900-3-1990
Hexagon head bolts,large plain and spring lock washer assemblies
DIN 6900-5-1990
Hexagon head bolts and conical spring washers assemblies
Q 140-1999
Hexagon head bolts and plain washer assemblies
Q 141-1999
Hexagon head bolts and conical spring washers assemblies
Q 142-1999
Hexagon head bolts and spring washer assemblies
Q 144-1999
Hexagon head bolt and external teeth serrated lock washer assemblies
Q 146-1999
Hexagon head bolts, spring and plain washer assemblies