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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Hexagon bolts with wire holes on head

GOST 7798 - 1970

Display drawing:

俄标GOST 7798 - 1970 GOST7798 7798GOST Hexagon bolts with wire holes on head

Nominal Length L Tips:seclect Nominal Length L and get Thread length.

Thread Size
d

6

8

10

12

(14)

16

(18)

20

(22)

24

(27)

30

36

42

48

P	Coarse thread
	Fine thread
d₁
s
k
e	min
d_w	min
h₁	min
	max
d₄	min=nominal size
	max
L₂	Nominal Size
	min
	max

1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5	4	4.5	5
/	1	1.25	1.25	1.5	1.5	1.5	1.5	1.5	2	2	2	3	3	3
6	8	10	12	14	16	18	20	22	24	27	30	36	42	48
10	13	16	18	21	24	27	30	34	36	41	46	55	65	75
4	5.3	6.4	7.5	8.8	10	12	12.5	14	15	17	18.7	22.5	26	30
10.9	14.2	17.6	19.9	22.8	26.2	29.6	33	37.3	39.6	45.2	50.9	60.8	71.3	82.6
8.7	11.5	14.5	16.5	19.2	22	24.8	27.7	31.4	33.2	38	42.7	51.1	59.9	69.4
0.15	0.15	0.15	0.15	0.15	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.25	0.25
0.6	0.6	0.6	0.6	0.6	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
2	2.5	2.5	3.2	3.2	4	4	4	4	4	4	4	5	5	5
2.4	2.9	2.9	3.68	3.68	4.48	4.48	4.48	4.48	4.48	4.48	4.48	5.48	5.48	5.48
2	2.8	3.5	4	4.5	5	6	6.5	7	7.5	8.5	9.5	11.5	13	15
1.8	2.6	3.26	3.76	4.26	4.76	5.76	6.21	6.71	7.21	8.21	9.21	11.15	12.65	14.65
2.2	3	3.74	4.24	4.74	5.24	6.24	6.79	7.29	7.79	8.79	9.79	11.85	13.35	15.35

Length of Thread b

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Similar Standards

1		[EN] EN 2887 - 1995	Aerospace series - Bolts, normal hexagonal head, threaded to head, in corrosion resisting steel, passivated - Classification: 600 MPa (at ambient temperature)/425 °C
2		[GB] GB 26 - 1976	Bolts, Small Hexagon Head With Fit Neck And Holes Through The Head
3		[GB] GB 25 - 1976	Bolts, Small Hexagon Head With Holes Through The Head
4		[GB] GB 32.1 - 1988	Hexagon Bolts With Wire Hole On Head-Product Grade A and B
5		[GB] GB 32.3 - 1988	Hexagon Bolts With Wire Holes On Head-fine Pitch Thread-product Grade A And B
6		[GB] GB /T 32.3 - 2020	Hexagon Bolts With Wire Holes On Head - Fine Pitch Thread
7		[GB] GB /T 32.1 - 2020	Hexagon Bolts With Wire Holes On Head
8		[GB] GB 32.2 - 1988	Hexagon Bolts With Wire Holes On Head - Reduced Shank - Product Grade B
9		[GOST] GOST 7805 (-3) - 1970	Hexagon Bolts With Wire Holes On Head, product grade A, Type 3