GB/T 3229-2008 Assembly tools for screws and nuts.Drive ends for hand and machine-operated screwdriver bits and connecting parts.Dimensions,torque testing (English Version)
This standard specifies the matching dimensions and torque tests of manual and motorized screwdriver heads and their sleeve drive ends, as well as motorized screwdriver drive guide rods. This standard establishes the interchangeability of screwdriver bits and their sockets. This standard only specifies the special structure of the special transmission end. Design details, such as gripping devices, are to be determined by the user of this standard.
GB/T 3229-2008 history
2018GB/T 3229-2018 Assembly tools for screws and nuts—Dimensions and torque testing of drive ends for hand and machine-operated screwdriver bits and connecting parts
2008GB/T 3229-2008 Assembly tools for screws and nuts.Drive ends for hand and machine-operated screwdriver bits and connecting parts.Dimensions,torque testing
2000GB/T 3229-2000 Assembly tools for bolts and screws-Hexagon drive ends for machine-operated screwdriver bits