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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Hexagon reduced head bolts with guide neck product grade A , Type 2

GOST 7811 (-2) - 1970

Display drawing:

俄标GOST 7811 (-2) - 1970 GOST7811 7811GOS Hexagon reduced head bolts with guide neck product grade A , Type 2

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

Thread Size
d

M6

M8

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

(M27)

M30

M36

M42

M48

P	Coarse thread
	Fine thread
d₁	max=nominal size
	min
h	min
s
k
e	min
d_w	min
h₂	min
	max
d₃

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
5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67	21.67	23.67	26.67	29.67	35.61	41.61	47.61
3	4	5	6	7	8	9	10	11	12	14	15	18	21	24
10	12	14	17	19	22	24	27	30	32	36	41	50	60	70
4	5	6	7	8	9	10	11	12	13	15	17	20	23	26
11	13.2	15.5	18.9	21.1	24.5	26.8	30.1	33.5	35.7	40	45.6	55.8	67	78.3
8.9	10.6	12.6	15.6	17.4	20.6	22.5	25.3	28.2	30	33.6	38.4	46.9	56.3	65.8
0.15	0.15	0.15	0.15	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.25	0.25
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	0.8
1.6	2	2.5	3.2	3.2	4	4	4	5	5	5	6.3	6.3	8	8

L₁

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-

-

-

-

-

-

-

-

-

-

-

-

-

-

Length of Thread b

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Similar Standards

1		[GB] GB 21 - 1976	Small hexagon head bolts View Suppliers
2		[JIS] JIS B 1180 (AT2.1) - 1994	Small hexagon head bolts, finished
3		[JIS] JIS B 1180 (AT2.2) - 1994	Small hexagon head bolts, semifinished
4		[GB] GB 22 - 1976	Bolts, small hexagon head with fit neck
5		[JIS] JIS B 1180 (AT2.1) - 2004	Small Hexagon Head Bolts (finished)
6		[JIS] JIS B 1180 (AT2.2) - 2004	Small hexagon bead bolt (Semi-finished)
7		[GOST] GOST 7817 - 1980	Product Grade A Fit Bolts With Hexagon Reduced Head
8		[GOST] GOST 7811 (-1) - 1970	Hexagon reduced head bolts with guide neck product grade A , Type 1
9		[GOST] GOST 7811 (-3) - 1970	Hexagon reduced head bolts with guide neck product grade A , Type 3
10		[GOST] GOST 7811 (-4) - 1970	Hexagon reduced head bolts with guide neck product grade A , Type 4
11		[GOST] GOST 7811 (-5) - 1970	Hexagon reduced head bolts with guide neck product grade A , Type 5
12		[CNS] CNS 3120 - 1987	Hexagon Bolts With Small Widths Across Flats
13		[CNS] CNS 4700 - 1987	Small Hexagon Head Bolts With Thread Approximately To Head, Small Widths Across Flats