BS 1768 - 1963 Unified Hexagon Head Bolts, Washer Faced

Unit:

Thread Size
d

1/4

5/16

3/8

PP	UNC
	UNF
d_s	max
	min
s	max
	min
e	max
d_a	max
	min
k	max
	min
r	max
	min
d₁	max
	min

20	18	16
28	24	24
0.25	0.3125	0.375
0.2465	0.309	0.3715
0.4375	0.5	0.5625
0.4305	0.493	0.5545
0.505	0.577	0.65
0.421	0.483	0.545
0.411	0.473	0.535
0.163	0.211	0.243
0.153	0.201	0.233
0.025	0.025	0.025
0.015	0.015	0.015
0.084	0.1	0.117
0.079	0.095	0.112

①,Bolts with split-pin holes will be supplied only when specially ordered. The purchaser should state, in his enquiry and order, Dimension Lh .

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 23 - 1976

Bolts, Small Hexagon Head With Hole Through The Shank

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

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