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Contact Us

Address:Pingtang Industrial District, Shipeng Village, Shishan Town, Nanhai District, Foshan City,
Phone:0757-81002668/0757-63323396
Fax:0757-81196682
Contact:梁先生/Mr Leung
Phone:18900873383/18900873268
E-mail:sbs@sbsprefabhouse.com
Skype: sbs-Candy
URL:http://www.sbshouses.cn

High strength bolts with large hexagon

Function: High strength bolt belongs to a kind of standard parts. After first tight and end tight construction, it is generally used for permanent connection.
Application: Application on the steel structure engineering, steel structure steel plate used to connect to the join points.

GB/T1228 Steel structure has high strength large hexagon head bolts type Size

Thread specifications-d

M12

M16

M20

M22

M24

M27

M30

Screw pitch P

1.75

2.5

3.5

max

0.8

min

0.4

max

15.23

19.23

24.32

26.32

28.32

32.84

35.84

max

12.43

16.43

20.52

22.52

24.52

27.84

30.4

min

11.57

15.57

19.48

21.48

23.48

26.16

29.16

min

19.2

24.9

31.4

33.3

42.8

46.5

min

22.78

59.56

37.29

39.55

45.2

50.85

55.37

nominal

7.5

12.5

18.7

max

7.95

10.75

13.4

14.9

15.9

17.9

19.75

min

7.05

9.25

11.6

13.1

14.1

16.1

17.65

min

1.5

max

min

20.16

26.16

L nominal

<45

≥45

<55

≥55

<65

≥65

<70

≥70

<75

≥75

<80

≥80

<85

≥85

nominal

Mechanical behavior:

Grade	Tensile strength	Yield strength σ0.2	Elongation δ5	Shrinking percentage Ψ
	σь	Mpa	%	%
	Mpa	min
10.9S	1040~1240	940	10	42
8.8S	830~1030	660	12	45

Loading force:

Thread specifications-d		M12	M16	M20	M22	M24	M27	M30
Pressed force section mm²		84.3	157	245	303	353	459	561
Pull force KN	10.9S	87.7~104.5	163~195	255~304	315~376	367~438	477~569	583~696
Pull force KN	8.8S	70.0~86.8	130~162	203~252	251~312	293~364	381~473	466~578

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High strength bolts with large hexagon