GB 23 - 1976 Bolts, Small Hexagon Head With Hole Through The Shank

GB /T 31.1 - 2013

Hexagon Bolts With Split Pin Hole On Shank

GB /T 31.1 - 1988

Hexagon bolts with split pin hole on shank A and B

GB 31.2 - 1988

Hexagon Bolts With Split Pin Hole On Shank-Reduced Shank-Product Grade B

GB 31.3 - 1988

Hexagon Bolts With Split Pin Hole On Shank-Fine Pitch Thread-Product Grade A and B

GB 24 - 1976

Bolts, Small Hexagon Head With Fit Neck And Hole Through The Shank

DIN 65526 - 2016

Aerospace series - Hexagon bolts, close tolerance, with short-length MJ thread, titanium alloy, nominal tensile strength 1100 MPa, for temperatures up to 315℃

Q 173

Hexagon head with hole through the shank

Q 173B

Hexagon bolts with split pin hole on shank-fine pitch thread

Q 173C

Hexagon bolts with split pin hole on shank-fine pitch thread

BS 1768 - 1963

Unified Hexagon Head Bolts, Washer Faced

GOST 7796 (-2) - 1970

Hexagon Reduced Head Bolts Product Grade B, Type 2

GOST 7796 (-5) - 1970

Hexagon Reduced Head Bolts Product Grade B, Type 5

GOST 7798 (2) - 1970

Hexagon bolts with split pin hole on shank

GOST 7805 (-2) - 1970

Hexagon bolts, Split Pin Hole, product grade A, Type 2

DL /T 764 - 2014

Hexagon head bolts with split pin hole on shank for electric power fittings

DL /T 764.1 - 2001

Electric Power Fitting Fasteners Hexagon Head Bolts With Split Pin Hole On Shank

GJB 3371 (/1~/9) - 1998

Hexagon Bolts with M Thread

GJB 3371 (/10 ~ /18) - 1998

Small Hexagon Bolts with Short M Thread

GJB 3371 (/19) - 1998

Hexagon Head Bolts，Shank Tolerance f9

GJB 3371 (/77~/78) - 1998

Hexagon Head Bolts, Short Thread, Shank Tolerance r6

GJB 3371 (/20) - 1998

Small Hexagon Head Bolts, Short Thread, Shank Tolerance r6

GJB 3371 (/21~/24) - 1998

Small Hexagon Head Bolts, Short Thread, Shank Tolerance h8

GJB 3371 (/25~/28) - 1998

Small Hexagon Head Bolts, Shank Tolerance f7

GJB 3371 (/29~/32) - 1998

Small Hexagon Head Bolts, Shank Tolerance h6

GJB 3371 (/69) - 1998

Hexagon Head Bolts, Short Thread, Shank Tolerance f9

GJB 3372 (/1~/10) - 1998

Hexagon Bolts，Split Pin Hole

QJ 2367 - 1992

HB 1- 101 - 2002

Hexagon Bolts

HB 1- 201 - 1995

Hexagon Head screws