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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Small hexagon head bolts, semifinished

JIS B 1180 (AT2.2) - 1994

Display drawing:

日标JIS B1180 (AT2.2) - 1994 JIS1180 1180J Small hexagon head bolts, semifinished

Screw Thread
d

M8

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

(M27)

M30

(M33)

M36

(M39)

P		Pitch	coarse thread
			Fine thread
d_s		max
		min
k		Nominal Size
		max
		min
s		max
		min
e		≈
D		≈
r		min
d_a		max
z		≈
c		≈

1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4
1	1.25	1.25	1.5	1.5	1.5	1.5	1.5	2	2	2	2	3	3
8	10	12	14	16	18	20	22	24	27	30	33	36	39
7.8	9.8	11.75	13.75	15.75	17.75	19.65	21.65	23.65	26.65	29.65	32.6	35.6	38.6
5.5	7	8	9	10	12	13	14	15	17	19	21	23	25
5.75	7.3	8.3	9.3	10.3	12.35	13.35	14.35	15.35	17.35	19.4	21.4	23.4	25.4
5.25	6.7	7.7	8.7	9.7	11.65	12.65	13.65	14.65	16.65	18.6	20.6	22.6	24.6
12	14	17	19	22	24	27	30	32	36	41	46	50	55
11.3	13.3	16.3	18.2	21.2	23.2	26.2	29.2	31	35	40	45	49	53.8
13.9	16.2	19.6	21.9	25.4	27.7	31.2	34.6	37	41.6	47.3	53.1	57.7	63.5
11.5	13.5	16.5	18	21	23	26	29	31	34	39	44	48	53
0.4	0.4	0.6	0.6	0.6	0.6	0.8	0.8	0.8	1	1	1	1	1
9.2	11.2	13.7	15.7	17.7	20.2	22.4	24.4	26.4	30.4	33.4	36.4	39.4	42.4
1.2	1.5	2	2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4
0.4	0.4	0.6	0.6	0.6	0.6	0.6	0.6	0.6	/	/	/	/	/

Alternative history

JIS B 1180 - 1994 JIS B 1180 - 2004

Similar Standards

1		[GB] GB 21 - 1976	Small hexagon head bolts View Suppliers
2		[GB] GB 22 - 1976	Bolts, small hexagon head with fit neck
3		[JIS] JIS B 1180 (AT2.1) - 1994	Small hexagon head bolts, finished
4		[JIS] JIS B 1180 (AT2.2) - 2004	Small hexagon bead bolt (Semi-finished)
5		[JIS] JIS B 1180 (AT2.1) - 2004	Small Hexagon Head Bolts (finished)
6		[GOST] GOST 7817 - 1980	Product Grade A Fit Bolts With Hexagon Reduced Head
7		[GOST] GOST 7811 (-1) - 1970	Hexagon reduced head bolts with guide neck product grade A , Type 1
8		[GOST] GOST 7811 (-2) - 1970	Hexagon reduced head bolts with guide neck product grade A , Type 2
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