Machine screws, screw Portfolio Series:
  GB code
  Standard Title
  Specifications of the thread
  GB / T 65-2000
  Slotted cylinder head screws
  M2-M10
  GB / T 67-2000
  Slot-head screw
  M2-M10
  GB / T 71-1985
  Cone set slotted screws tight end
  M2-M12
  GB / T 73-1985
  Slot-tight end set screw
  M2-M12
  GB / T 74-1985
  Au tight end set slotted screws
  M2-M12
  GB / T 75-1985
  Slotted cylindrical tight set screw
  M2-M12
  GB/T818-2000
  Cross was the first combination of screw groove
  M2-M10
  GB/T819-2000
  Cross-head screw slot
  M2-M10
  GB/T820-2000
  Cross-head screw slot -
  M2-M10
  GB/T822-2000
  Cross trough cylinder head screws
  M2.5-M8
  GB/T823-88
  Cross Xiaopanling first screw slot
  M2-M8
  GB/T9074.1-1988
  Cross-head screw slot peace washer assembly
  M3-M6
  GB/T9074.2-1988
  Cross trough the first set of serrated locking screw and washer assembly
  M3-M6
  GB/T9074.3-1988
  Cross-head screw slot and spring washer assembly
  M3-M6
  GB/T9074.4-1988
  Cross-head screw slot, spring washers peace washer assembly
  M3-M6
  GB/T9074.5-1988
  Cross Xiaopanling first screw slot peace washer assembly
  M2.5-M6
  GB/T9074.6-1988
  Cross trough small - and large washers head screw assemblies
  M2.5-M6
  GB/T9074.7-1988
  Cross the first small-slot screws and spring washer assembly
  M2.5-M6
  GB/T9074.8-1988
  Cross the first small-slot screws, washers spring washers peaceful assembly
  M2.5-M6
  GB/T9074.13-1988
  Cross Aojue 47.60 trough the first screw, spring washers peace washer assembly
  M4-M8
  GB/T9074.17-1988
  Hexagonal head bolts, washers spring washers peaceful assembly
  M4-M12
  GB/T825-1986
  Screw rings
  M8-M64