Standard number

Standard number

Standard number

name

name

name

Instead of standard number

Instead of standard number

Instead of standard number

(1) Thread standard

(1) Thread standard

(1) Thread standard

GB192－1981

GB192－1981

GB192－1981

Common thread-Basic dental type

Common thread-Basic dental type

Common thread-Basic dental type

GB192－1963

GB192－1963

GB192－1963

GB193－1981

GB193－1981

GB193－1981

Common Thread-Diameter and pitch Series (diameter 1~600mm)

Common Thread-Diameter and pitch Series (diameter 1~600mm)

Common Thread-Diameter and pitch Series (diameter 1~600mm)

GB193－1963

GB193－1963

GB193－1963

GB196－1981

GB196－1981

GB196－1981

Common Thread-Basic Size (diameter 1~600mm)

Common Thread-Basic Size (diameter 1~600mm)

Common Thread-Basic Size (diameter 1~600mm)

GB196－1963

GB196－1963

GB196－1963

(2) Fastener standards

(2) Fastener standards

(2) Fastener standards

GB/T8－1988

GB/T8－1988

GB/T8－1988

Square Head Bolts-Class C

Square Head Bolts-Class C

Square Head Bolts-Class C

GB8－1976

GB8－1976

GB8－1976

GB/T10－1988

GB/T10－1988

GB/T10－1988

Sink head square neck bolt

Sink head square neck bolt

Sink head square neck bolt

GB10－1976

GB10－1976

GB10－1976

GB/T27－1988

GB/T27－1988

GB/T27－1988

Bolts-Class A and B

Bolts-Class A and B

Bolts-Class A and B

GB27－1976

GB27－1976

GB27－1976

GB/T28－1988

GB/T28－1988

GB/T28－1988

Hx-head bolt-A and B

Hx-head bolt-A and B

Hx-head bolt-A and B

GB/T29.1－1988

GB/T29.1－1988

GB/T29.1－1988

Hexagon head with slot bolts-A and B

Hexagon head with slot bolts-A and B

Hexagon head with slot bolts-A and B

GB29－1976

GB29－1976

GB29－1976

GB/T29.2－1988

GB/T29.2－1988

GB/T29.2－1988

Cross socket hexagon head bolt

Cross socket hexagon head bolt

Cross socket hexagon head bolt

GB29－1976

GB29－1976

GB29－1976

GB/T31.1－1988

GB/T31.1－1988

GB/T31.1－1988

Hexagon head screw with hole bolt-Class A and B

Hexagon head screw with hole bolt-Class A and B

Hexagon head screw with hole bolt-Class A and B

GB23、24、31－1976

GB23、24、31－1976

GB23、24、31－1976

GB/T39－1988

GB/T39－1988

GB/T39－1988

Square nut-C class

Square nut-C class

Square nut-C class

GB39－1976

GB39－1976

GB39－1976

GB/T41－2000

GB/T41－2000

GB/T41－2000

Hexagon nut-Class C

Hexagon nut-Class C

Hexagon nut-Class C

GB/T41－1986

GB/T41－1986

GB/T41－1986

GB/T56－1988

GB/T56－1988

GB/T56－1988

Hexagon thick nut

Hexagon thick nut

Hexagon thick nut

GB56－1976

GB56－1976

GB56－1976

GB/T62－1988

GB/T62－1988

GB/T62－1988

butterfly nut

butterfly nut

butterfly nut

GB62－1976

GB62－1976

GB62－1976

GB/T63－1988

GB/T63－1988

GB/T63－1988

collar nut

collar nut

collar nut

GB63－1976

GB63－1976

GB63－1976

GB/T65－2000

GB/T65－2000

GB/T65－2000

slotted cheese-head screw

slotted cheese-head screw

slotted cheese-head screw

GB/T65－1985

GB/T65－1985

GB/T65－1985

GB/T67－2000

GB/T67－2000

GB/T67－2000

Sink disc head screw

Sink disc head screw

Sink disc head screw

GB/T67－1985

GB/T67－1985

GB/T67－1985

GB/T68－2000

GB/T68－2000

GB/T68－2000

Sink sink head screw

Sink sink head screw

Sink sink head screw

GB/T68－1985

GB/T68－1985

GB/T68－1985

GB/T69－2000

GB/T69－2000

GB/T69－2000

Stted half sink nut

Stted half sink nut

Stted half sink nut

GB/T69－1985

GB/T69－1985

GB/T69－1985

GB/T70.1－2000

GB/T70.1－2000

GB/T70.1－2000

Inner hexagonal cylindrical screw

Inner hexagonal cylindrical screw

Inner hexagonal cylindrical screw

GB/T70－1985

GB/T70－1985

GB/T70－1985

GB/T70.2－2000

GB/T70.2－2000

GB/T70.2－2000

Inner hexagonal flat round head screw / first release

Inner hexagonal flat round head screw / first release

Inner hexagonal flat round head screw / first release

GB/T70.3－2000

GB/T70.3－2000

GB/T70.3－2000

Inner hexagon head screw / first release

Inner hexagon head screw / first release

Inner hexagon head screw / first release

GB/T71－1985

GB/T71－1985

GB/T71－1985

Tighten the screw at the slotted screw end

Tighten the screw at the slotted screw end

Tighten the screw at the slotted screw end

GB71－1976

GB71－1976

GB71－1976

GB/T72－1988

GB/T72－1988

GB/T72－1988

Slot cone-end positioning screw

Slot cone-end positioning screw

Slot cone-end positioning screw

GB72－1976

GB72－1976

GB72－1976

GB/T74－1985

GB/T74－1985

GB/T74－1985

Slot socket-end tightening screw

Slot socket-end tightening screw

Slot socket-end tightening screw

GB74－1976

GB74－1976

GB74－1976

GB/T75－1985

GB/T75－1985

GB/T75－1985

Tighten the screws at the slotted long cylindrical end

Tighten the screws at the slotted long cylindrical end

Tighten the screws at the slotted long cylindrical end

GB75－1976

GB75－1976

GB75－1976

Standard number

Standard number

Standard number

name

name

name

Instead of standard number

Instead of standard number

Instead of standard number

GB/T77－2000

GB/T77－2000

GB/T77－2000

Inner hexagonal flat end tightening screw

Inner hexagonal flat end tightening screw

Inner hexagonal flat end tightening screw

GB/T77－1985

GB/T77－1985

GB/T77－1985

GB/T78－2000

GB/T78－2000

GB/T78－2000

Tighten the screw at the inner hexagonal cone end

Tighten the screw at the inner hexagonal cone end

Tighten the screw at the inner hexagonal cone end

GB/T78－1985

GB/T78－1985

GB/T78－1985

GB/T79－2000

GB/T79－2000

GB/T79－2000

Sighten the inner hexagonal cylindrical end

Sighten the inner hexagonal cylindrical end

Sighten the inner hexagonal cylindrical end

GB/T79－1985

GB/T79－1985

GB/T79－1985

GB/T80－2000

GB/T80－2000

GB/T80－2000

Tighten the screw at the inner hexagonal concave end

Tighten the screw at the inner hexagonal concave end

Tighten the screw at the inner hexagonal concave end

GB/T80－1985

GB/T80－1985

GB/T80－1985

GB/T83－1988

GB/T83－1988

GB/T83－1988

Tighten the screw at the spherical end of the square head rectangular cylinder

Tighten the screw at the spherical end of the square head rectangular cylinder

Tighten the screw at the spherical end of the square head rectangular cylinder

GB83－1976

GB83－1976

GB83－1976

GB/T84－1988

GB/T84－1988

GB/T84－1988

Tighten the screw at the concave end of the square head

Tighten the screw at the concave end of the square head

Tighten the screw at the concave end of the square head

GB84－1976

GB84－1976

GB84－1976

GB/T8

GB/T8

GB/T8

Standard number

Standard number

Standard number

name

name

name

Instead of standard number

Instead of standard number

Instead of standard number

(1) Thread standard

(1) Thread standard

(1) Thread standard

GB192－1981

GB192－1981

GB192－1981

Common thread-Basic dental type

Common thread-Basic dental type

Common thread-Basic dental type

GB192－1963

GB192－1963

GB192－1963

GB193－1981

GB193－1981

GB193－1981

Common Thread-Diameter and pitch Series (diameter 1~600mm)

Common Thread-Diameter and pitch Series (diameter 1~600mm)

Common Thread-Diameter and pitch Series (diameter 1~600mm)

GB193－1963

GB193－1963

GB193－1963

GB196－1981

GB196－1981

GB196－1981

Common Thread-Basic Size (diameter 1~600mm)

Common Thread-Basic Size (diameter 1~600mm)

Common Thread-Basic Size (diameter 1~600mm)

GB196－1963

GB196－1963

GB196－1963

(2) Fastener standards

(2) Fastener standards

(2) Fastener standards

GB/T8－1988

GB/T8－1988

GB/T8－1988

Square Head Bolts-Class C

Square Head Bolts-Class C

Square Head Bolts-Class C

GB8－1976

GB8－1976

GB8－1976

GB/T10－1988

GB/T10－1988

GB/T10－1988

Sink head square neck bolt

Sink head square neck bolt

Sink head square neck bolt

GB10－1976

GB10－1976

GB10－1976

GB/T27－1988

GB/T27－1988

GB/T27－1988

Bolts-Class A and B

Bolts-Class A and B

Bolts-Class A and B

GB27－1976

GB27－1976

GB27－1976

GB/T28－1988

GB/T28－1988

GB/T28－1988

Hx-head bolt-A and B

Hx-head bolt-A and B

Hx-head bolt-A and B

GB/T29.1－1988

GB/T29.1－1988

GB/T29.1－1988

Hexagon head with slot bolts-A and B

Hexagon head with slot bolts-A and B

Hexagon head with slot bolts-A and B

GB29－1976

GB29－1976

GB29－1976

GB/T29.2－1988

GB/T29.2－1988

GB/T29.2－1988

Cross socket hexagon head bolt

Cross socket hexagon head bolt

Cross socket hexagon head bolt

GB29－1976

GB29－1976

GB29－1976

GB/T31.1－1988

GB/T31.1－1988

GB/T31.1－1988

Hexagon head screw with hole bolt-Class A and B

Hexagon head screw with hole bolt-Class A and B

Hexagon head screw with hole bolt-Class A and B

GB23、24、31－1976

GB23、24、31－1976

GB23、24、31－1976

GB/T39－1988

GB/T39－1988

GB/T39－1988

Square nut-C class

Square nut-C class

Square nut-C class