GB/T 1442-1985
Replaced
GB/T 4390-2008
Active
National standards
GB/T 4390-2008 Wrench openings—Tolerances for general use
GB/T 4390-2008 Wrench openings—Tolerances for general use
Basic Information
Standard Code:
GB/T 4390-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Hand tools
ICS Name:
Hand tools
Publish Date:
2008-12-30
Implement Date:
2009-09-01
Pages:
6 pages
Scope
This standard specifies the common tolerances for the openings and sockets of metric wrenches as shown in Figure 1.
This standard applies to socket wrenches and star wrenches used for tightening bolts, screws, and nuts (or similar parts) with metric dimensions on the opposite sides.
Development Information
Replace the following standards
Referenced Standards
Adopt standards
ISO 691:2005
Related Standards
GB/T 1443-1996
Replaced
GB/T 1443-1996 Machine tools—Self-holding tapers for tool shanks
GB/T 4440-1998
Replaced
GB/T 4440-1998 Adjustable wrenches
GB/T 6289-1999
Replaced
GB/T 6289-1999 Pliers and nippers—Nomenclature
GB/T 6290-1999
Replaced
GB/T 6290-1999 Pliers and nippers—General technical requirements
GB/T 6291-1999
Replaced