JIS B 1180 Standard

Dimensions of Nominal diameter hexagon head bolt, coarse, product Grade A and B (First selection)
Dimensions of Nominal diameter hexagon head bolt, coarse, product Grade A and B (Second selection)
Product specifications of nominal diameter hexagon head bolt, coarse, product Grade A and B
Dimensions of Nominal diameter hexagon head bolt, coarse, product Grade C (First selection)
Dimensions of Nominal diameter hexagon head bolt, coarse, product Grade C (Second selection)
Product specifications of nominal diameter hexagon head bolt, coarse, product Grade C

Nominal diameter hexagon head bolts, coarse, product grades A and B

Nominal diameter hexagon head bolt, coarse, product grade A and B

Notes

β = 15° to 30°
point shall be chamfered. FOr threads of M4 or under it may be as-rolled (see JIS B 1003).
Incomplete thread length at thread point u ≤ 2P.
Reference datum for d_w.
Maximum underhead fillet.

Dimensions of nominal diameter heaxgon head bolt, coarse, product grade A and B (first selection)

Unit:mm

Designation of thread (d)					M1.6		M2		M2.5		M3		M4		M5		M6		M8		M10
P^a					0.35		0.4		0.45		0.5		0.7		0.8		1		1.25		1.5
b (informative)			b)		9		10		11		12		14		16		18		22		26
			e)		15		16		17		18		20		22		24		28		32
			d)		28		29		30		31		33		35		37		41		45
c			max.		0.25		0.25		0.25		0.40		0.40		0.50		0.50		0.60		0.60
c			min.		0.10		0.10		0.10		0.15		0.15		0.15		0.15		0.15		0.15
d_a			max.		2		2.6		3.1		3.6		4.7		5.7		6.8		9.2		11.2
d_s	Reference dimensions max.				1.60		2.00		2.50		3.00		4.00		5.00		6.00		8.00		10.00
	Product grade	A	min.		1.46		1.86		2.36		2.86		3.82		4.82		5.82		7.78		9.78
	Product grade	B	min.		1.35		1.75		2.25		2.75		3.70		4.70		5.70		7.64		9.64
d_w	Product grade	A	min.		2.27		3.07		4.07		4.57		5.88		6.88		8.88		11.63		14.63
d_w	Product grade	B	min.		2.30		2.95		3.95		4.45		5.74		6.74		8.74		11.47		14.47
e	Product grade	A	min.		3.41		4.32		5.45		6.01		7.66		8.79		11.05		14.38		17.77
e	Product grade	B	min.		3.28		4.18		5.32		5.88		7.50		8.63		10.89		14.20		17.59
l_t			max.		0.6		0.8		1		1		1.2		1.2		1.4		2		2
k	Reference dimensions				1.1		1.4		1.7		2		2.8		3.5		4		5.3		6.4
	Product grade	A	max.		1.225		1.525		1.825		2.125		2.925		3.65		4.15		5.45		6.58
	Product grade	A	min.		0.975		1.275		1.575		1.875		2.675		3.65		3.85		5.15		6.22
	Product grade	B	max.		1.3		1.6		1.9		2.2		3.0		3.74		4.24		5.54		6.69
	Product grade	B	min.		0.9		1.2		1.5		1.8		2.6		3.26		3.76		5.06		6.11
k_w e)	Product grade	A	min.		0.68		0.89		1.10		1.31		1.87		2.35		2.70		3.61		4.35
k_w e)	Product grade	B	min.		0.63		0.84		1.05		1.26		1.82		2.28		2.63		3.54		4.28
r			min.		0.1		0.1		0.1		0.1		0.2		0.2		0.25		0.4		0.4
s	Reference dimension = max.				3.20		4.00		5.00		5.50		7.00		8.00		10.00		13.00		16.00
	Product grade	A	min.		3.02		3.82		4.82		5.32		6.78		7.78		9.78		12.73		15.73
	Product grade	B	min.		2.90		3.70		4.70		5.20		6.64		7.64		9.64		12.57		15.57
	Product grade				l_s and l_g^f)
	A		B		l_s and l_g^f)
nom. length	min.	max.	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
12	11.65	12.35	--	--	12	3							For Sizes of bolts with l above the solid, bols, stepped line, table 15 is recommended.
16	15.65	16.35	--	--	5.2	7	4	6	2.75	5
20	19.58	20.42	18.95	21.05			8	10	6.75	9	5.5	8
25	24.58	25.42	23.95	26.05					11.5	14	10.5	13	75	11	5	9
30	29.58	30.42	28.95	31.05							15.5	18	12.5	16	10	14	7	12
35	34.5	35.5	33.75	36.25									17.5	21	15	19	12	17
40	39.5	40.5	38.75	41.25									22.5	26	20	24	17	22	11.75	18
45	44.5	45.5	43.75	46.25											25	29	22	27	16.75	23	11.5	19
50	49.5	50.5	48.75	51.25											30	34	27	32	21.75	28	16.5	24
55	54.4	55.6	53.5	56.5													32	37	26.75	33	21.5	29
60	59.4	60.6	58.5	61.5													37	42	31.75	38	26.5	34
65	64.4	65.6	63.5	66.5															36.75	43	31.5	39
70	69.4	70.6	68.5	71.5															41.75	48	36.5	44
80	79.4	80.6	78.5	81.5															51.75	58	46.5	54
90	89.3	90.7	88.25	91.75																	56.5	64
100	99.3	100.7	98.25	101.75																	66.5	74
110	109.3	110.7	108.25	111.75
120	119.3	120.7	118.25	12.75

Unit:mm

Designation of thread (d)					M12		M16		M20		M24		M30		M36		M42		M48		M56		M64
P^a					1.75		2		2.5		3		3.5		4		4.5		5		5.5		6
b (informative)			b)		30		38		46		54		64		--		--		--		--		--
			e)		36		44		52		60		72		84		96		108		--		--
			d)		49		57		65		73		85		97		109		121		137		153
c			max.		0.60		0.08		0.08		0.08		0.08		0.08		1.0		1.0		1.0		1.0
c			min.		0.15		0.2		0.2		0.2		0.2		0.2		0.3		0.3		0.3		0.3
d_a			max.		13.7		17.7		22.4		26.4		33.4		39.4		45.6		52.6		63		71
d_s	Reference dimensions max.				12.00		16.00		20.50		24.00		30.00		36.00		42.00		48.00		56.00		64.00
	Product grade	A	min.		11.73		15.73		19.67		23.67		--		--		--		--		--		--
	Product grade	B	min.		11.57		15.57		19.48		23.48		29.48		35.48		41.38		47.38		55.26		63.26
d_w	Product grade	A	min.		16.63		22.49		28.19		33.61		--		--		--		--		--		--
d_w	Product grade	B	min.		16.47		22		27.7		32.25		42.75		51.11		59.95		69.45		78.66		88.16
e	Product grade	A	min.		20.03		26.75		33.53		39.98		--		--		--		--		--		--
e	Product grade	B	min.		19.85		26.17		32.95		39.55		50.85		60.79		71.3		82.6		93.56		104.86
l_t			max.		3		3		4		4		6		6		8		10		12		13
k	Reference dimensions				7.5		10		12.5		15		18.7		22.5		26		30		35		40
	Product grade	A	max.		7.68		10.18		12.715		15.215		--		--		--		--		--		--
	Product grade	A	min.		7.32		9.82		12.285		14.785		--		--		--		--		--		--
	Product grade	B	max.		7.79		10.29		12.85		15.35		19.12		22.92		26.42		30.42		35.5		40.5
	Product grade	B	min.		7.21		9.71		12.15		14.65		18.28		28.08		25.58		29.58		34.5		39.5
k_w e)	Product grade	A	min.		5.12		6.87		8.6		10.35		--		--		--		--		--		--
k_w e)	Product grade	B	min.		5.05		6.8		8.51		10.26		12.8		15.46		17.91		20.71		24.15		27.65
r			min.		0.6		0.6		0.8		0.8		1		1		1.2		1.6		2		2
s	Reference dimension = max.				18.00		24.00		30.00		36.00		46		55.0		65.0		75.0		85.0		95.0
	Product grade	A	min.		17.73		23.67		29.67		35.38		--		--		--		--		--		--
	Product grade	B	min.		17.57		23.16		29.16		35.00		45		53.8		63.1		73.1		82.8		92.8
	Product grade				l_s and l_g^f)
	A		B		l_s and l_g^f)
nom. length	min.	max.	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
50	49.5	50.5	--	--	11.25	20
55	54.4	55.6	53.5	56.5	16.25	25
60	59.4	60.6	58.5	61.5	21.25	30
65	64.4	65.6	63.5	66.5	26.5	35.5	17	27
70	69.4	70.6	68.5	71.5	31.25	40	22	32
80	79.4	80.6	78.5	81.5	41.25	50	32	42	21.5	34
90	89.3	90.7	88.25	91.75	51.25	60	42	52	31.5	44	21	36
100	99.3	100.7	98.25	101.75	61.25	70	52	62	41.5	54	31	21
110	109.3	110.7	108.25	111.75	71.25	80	62	72	51.5	64	41	56	26.5	44
120	119.3	120.7	118.25	121.75	81.25	90	72	82	61.5	74	51	66	36.5	54
130	129.2	130.8	128	132			76	86	65.5	78	55	70	40.5	58
140	139.2	140.8	138	142			86	96	75.5	88	65	80	50.5	68	36	56
150	149.2	150.8	148	152			96	106	85.5	98	75	90	60.5	78	46	66
160	--	--	158	162			106	116	95.5	108	85	100	70.5	88	56	76	41.5	64
180	--	--	178	182					11.5	128	105	120	90.5	108	76	96	61.5	84	47	72
200	--	--	197.7	202.3					135.5	148	125	140	110.5	128	96	116	81.5	104	67	92
220	--	--	217.7	222.3							132	147	117.5	135	103	123	88.5	111	74	99	55.5	83
240	--	--	237.7	242.3							152	167	137.5	155	123	143	108.5	131	94	119	75.5	103
260	--	--	257.4	262.6									157.5	175	143	163	128.5	151	114	139	95.5	123	77	107
280	--	--	277.4	282.6									177.5	195	163	183	148.5	171	134	159	115.5	143	97	127
300	--	--	297.4	302.6									197.5	215	183	203	168.5	191	154	179	135.5	163	117	147
320	--	--	317.15	322.85											203	223	188.5	211	174	199	155.5	183	137	167
340	--	--	317.15	322.85											223	243	208.5	231	194	219	175.5	203	157	187
360	--	--	357.15	362.85											243	263	228.5	251	214	239	19.5	223	177	207
380	--	--	377.15	382.85													248.5	271	234	259	215.5	243	197	227
400	--	--	397.15	402.85													268.5	291	254	279	235.5	263	218	247
420	--	--	416.85	423.15													288.5	311	274	299	255.5	283	237	267
440	--	--	436.85	443.15													308.5	331	294	319	275.5	303	257	287
460	--	--	456.85	463.15															314	339	295.5	323	277	307
480	--	--	476.85	483.15															334	359	315.5	343	297	327
500	--	--	496.85	503.15																	335.5	363	317	347
Prefered lengths are defined in terms of l_s and l_g: --- product grade A, above the discontinuous, stepped line; --- product grade B, below this stepped line. Notes a) P is the pitch of the thread. b) FOR l_nom ≤ 125 mm. c) For 125 mm < l_nom ≤ 200 mm. d) For l_nom > 200 mm. e) k_w,min = 0.7 k_min f)l_{g, min} = l_nom - b l_s,min = l_g,max - 5P

Dimensions of nominal diameter hexagon head bolt, coarse, product grades A and B (second selection)

Unit:mm

Designation of thread (d)					M3.5		M14		M18		M22		M27
P^a					0.6		2		2.5		0.7		3
b (informative)			b)		13		34		42		50		60
			e)		19		40		48		56		66
			d)		32		53		61		69		79
c			max.		0.40		0.60		0.8		0.8		0.8
c			min.		0.15		0.15		0.2		0.2		0.2
d_a			max.		4.1		15.7		20.2		24.4		30.4
d_s	Reference dimensions max.				3.50		14.00		18.00		22.00		27.00
	Product grade	A	min.		3.32		13.73		17.73		21.67		--
	Product grade	B	min.		3.20		13.57		17.57		21.48		26.48
d_w	Product grade	A	min.		5.07		19.64		25.34		31.71		--
d_w	Product grade	B	min.		4.95		19.15		24.85		31.35		38
e	Product grade	A	min.		6.58		23.36		30.14		37.72		--
e	Product grade	B	min.		6.44		22.78		29.56		37.29		45.2
l_t			max.		1		3		3		4		6
k	Reference dimensions				2.4		8.8		11.5		14		17
	Product grade	A	max.		2.525		8.98		11.715		14.215		--
	Product grade	A	min.		2.275		8.62		11.285		13.785		--
	Product grade	B	max.		2.6		9.09		11.85		14.35		17.35
	Product grade	B	min.		2.2		8.51		11.15		13.65		13.65
k_w e)	Product grade	A	min.		1.59		6.03		7.9		9.65		--
k_w e)	Product grade	B	min.		1.54		5.96		7.81		9.56		11.66
r			min.		0.1		0.6		0.6		0.8		1
s	Reference dimension = max.				6.00		21.00		27.00		34.00		41
	Product grade	A	min.		5.82		20.67		26.67		33.38		--
	Product grade	B	min.		5.70		20.16		26.16		33.00		40
	Product grade				l_s and l_g^f)
	A		B		l_s and l_g^f)
nom. length	min.	max.	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
20	19.58	20.42	--	--	4	7
25	24.58	25.42	--	--	9	12
30	29.58	30.42	--	--	14	17
35	34.5	35.5	--	--	19	22	For sizes of bolts with l above the solid, bold, stepped line, table 16 is recommended.
40	39.5	40.5	38.75	41.25
45	44.5	45.5	43.75	46.25
50	49.5	50.5	48.75	51.25
55	54.4	55.6	53.5	56.5
60	59.4	60.6	58.5	61.5			16	26
65	64.4	65.6	63.5	66.5			21	31
70	69.4	70.6	68.5	26			36	48	15.5	28
80	79.4	80.6	78.5	81.5			36	46	25.5	38
90	89.3	90.7	88.25	91.75			46	56	35.5	48	27.5	40
100	99.3	100.7	98.25	101.75			56	66	45.5	58	37.5	50	25	40
110	109.3	110.7	108.25	111.75			66	76	55.5	68	47.5	60	35	50
120	119.3	120.7	118.25	12.75			76	86	65.5	78	57.5	70	45	60
130	129.2	130.8	128	132			80	90	69.5	82	61.5	74	49	64
140	139.2	140.8	138	142			90	100	79.5	92	71.5	84	59	74
150	149.2	150.8	148	152					89.5	102	81.5	94	69	84
160	--	--	158	162					99.5	112	91.5	104	79	94
180	--	--	178	182					119.5	132	111.5	124	99	114
200	--	--	197.7	202.3							131.5	144	119	134
220	--	--	217.7	222.3							138.5	151	126	141
240	--	--	237.7	242.3									146	161
260	--	--	257.4	262.6									166	181

Unit:mm

Designation of thread (d)					M33		M39		M45		M52		M60
P^a					35		4		4.5		5		5.5
b (informative)			b)		--		--		--		--		--
			e)		78		90		102		116		--
			d)		91		103		115		129		145
c			max.		0.8		1.0		1.0		1.0		1.0
c			min.		0.2		0.3		0.3		0.3		0.3
d_a			max.		36.4		42.4		48.6		56.6		67
d_s	Reference dimensions max.				33.00		39.00		45.00		52.00		60.00
	Product grade	A	min.		--		--		--		--		--
	Product grade	B	min.		32.38		38.38		44.38		51.26		59.26
d_w	Product grade	A	min.		--		--		--		--		--
d_w	Product grade	B	min.		46.55		55.86		64.7		74.2		83.41
e	Product grade	A	min.		--		--		--		--		--
e	Product grade	B	min.		55.37		66.44		76.95		88.25		99.21
l_t			max.		6		6		8		10		12
k	Reference dimensions				21		25		28		33		38
	Product grade	A	max.		--		--		--		--		--
	Product grade	A	min.		--		--		--		--		--
	Product grade	B	max.		21.42		25.42		28.42		33.5		38.5
	Product grade	B	min.		20.58		24.58		27.58		32.5		37.5
k_w e)	Product grade	A	min.		--		--		--		--		--
k_w e)	Product grade	B	min.		14.41		17.21		19.31		22.75		26.25
r			min.		1		1		1.2		1.6		2
s	Reference dimension = max.				50		60.0		70.0		80.0		90.0
	Product grade	A	min.		--		--		--		--		--
	Product grade	B	min.		49		58.8		68.1		78.1		87.8
	Product grade				l_s and l_g^f)
	A		B		l_s and l_g^f)
nom. length	min.	max.	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
130	129.2	130.8	128	132	34.5	52	For sizes of bolts with l above the solid, bold, stepped line, table 16 is recommended.
140	139.2	140.8	138	142	44.5	62
150	149.2	150.8	148	152	54.5	72	40	60
160	--	--	158	162	64.5 84.5 104.5	82 102 122	50 70 90	70
180	--	--	178	182				90	55.5	78
200	--	--	197.7	202.3				110	75.5	98	59	84
220	--	--	217.7	222.3	111.5 131.5 151.5	129 149 169	97 117 137	117 137 157	82.5 102.5 122.5	105 125 145	66 86 106	91
240	--	--	237.7	242.3								111	67.5	95
260	--	--	257.4	262.6								131	87.5	115
280	--	--	277.4	282.6	171.5 191.5 211.5	189 209 229	157 177 197	177 197 217	142.4 162.5 182.5	165 185 205	126 146 166	151 171 191	107.5 127.5 147.5	135 155 175
300	--	--	297.4	302.6
320	--	--	317.15	322.85
340	--	--	337.15	342.85			217 237 257	237 257 277	202.5 222.5 242.5	225 245 265	186 206 226	211 231 251	167.5 187.5 207.5	195 215 235
360	--	--	357.15	362.85
380	--	--	377.15	382.85
400	--	--	397.15	402.85					262.5 282.5 30.5	285 305 325	246 266 286	271 291 311	227.5 247.5 267.5	255 275 295
420	--	--	416.85	423.15
440	--	--	436.85	443.15
460	--	--	456.85	463.15							306 326	331 351	287.5 307.5 327.5	315 335 355
480	--	--	476.85	483.15							306 326	331 351
500	--	--	496.85	503.15
Prefered lengths are defined in terms of l_s and l_g: --- product grade A, above the discontinuous, stepped line; --- product grade B, below this stepped line. Notes a) P is the pitch of the thread. b) FOR l_nom ≤ 125 mm. c) For 125 mm < l_nom ≤ 200 mm. d) For l_nom > 200 mm. e) k_w,min = 0.7 k_min f)l_{g, min} = l_nom - b l_s,min = l_g,max - 5P

Product specifications of nominal diameter hexagon head bolts, coarse, product grade A and B

Material		Steel	Stainless steel	Non-ferrous metal
General requirements	Applicable standard	JIS B 1099
Thread	Tolerance class	6g
Thread	Applicable standard	JIS B 0205-4, JIS B 0209-1
Mechanical properties	Property class^a)	d < 3 mm: as agreed 3 mm ≤ d ≤ 39 mm: 5.6, 8.8, 9.8, 10.9 d > 39 mm: as agreed	d ≤ 24 mm: A2-70, A4-70 24 mm < d ≤ 39 mm: A2-50, A4-50 d > 39 mm: as agreed	Material are specified in JIS B 1057.
Mechanical properties	Applicable standard	3 mm ≤ d ≤ 39 mm: JIS B 1051 d > 39 mm: as agreed	3 mm ≤ d ≤ 39 mm: JIS B 1054-1 d > 39 mm: as agreed	Material are specified in JIS B 1057.
Tolerance	Product grade	For d ≤ 24 mm and l ≤ 10d or l ≤ 150 mm ^b): A For d > 24 mm or l > 10d or l > 150 mm ^b) : B
Tolerance	Applicable standard	JIS B 1021
Finish--Coating		As processed Requirements for electroplating are specified in JIS B 1044. Requirements for non-electrolytically applied zinc flake coatings are specified in JIS B 1046.	As processed	As processed Requirements for electroplating are specified in JIS B 1044.
Finish--Coating		Additional requirements or other finishes or coatings shall be agreed between the purchaser and the manufacturer.
Surface intergrity		Limits for surface discontinuous are specified in JIS B 1041	--	--
Acceptability		Acceptance inspection is specified in JIS B 1091

Nominal diameter hexagon head bolts, coarse, product grades C

Nominal diameter hexagon head bolt, coarse, product grade C

Notes

β = 15° to 30°
End without special requirements.
Incomplete thread length at thread point u ≤ 2P.
Reference datum for d_w.
Washer face premissible

Dimensions of nominal diameter hexagon head bolts, coarse, product grade C (First selection)

Unit:mm

Designation of thread (d)			M5		M6		M8		M10		M12		M16		M20
P^a)			0.8		1		1.25		1.5		1.75		2		2.5
b (informative)		b)	16		18		22		26		30		38		46
		c)	22		24		28		32		36		44		52
		d)	35		37		41		45		49		57		65
c	max.		0.5		0.5		0.6		0.6		0.6		0.8		0.8
d_a	max.		6		7.2		10.2		12.2		14.7		18.7		24.4
d_s	max.		5.48		6.48		8.48		10.48		12.48		16.48		20.48
d_s	min.		4.52		5.52		7.52		9.52		11.3		15.3		19.16
d_w	min.		6.74		8.74		11.74		14.74		16.74		22		27.7
e	min.		8.63		10.89		14.2		17.59		19.85		26.17		32.95
k	Reference dimensions		3.5		4		5.3		6.4		7.5		10		12.5
	max.		3.875		4.375		5.675		6.85		7.95		10.75		13.4
	min.		3.125		3.625		4.925		5.95		7.05		9.25		11.6
k_w a)	min.		2.19		2.54		3.45		4.17		4.94		6.48		8.12
r	min.		0.2		0.25		0.4		0.4		0.6		0.6		0.8
s	Reference dimension = max.		8.00		10.00		13.00		16.00		18.00		24.00		30.00
s	min.		7.64		9.64		12.57		15.57		17.57		23.16		29.16
l			l_g and l_g^D
nominal length	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
25	23.95	26.05	5	9			For Sizes of bolts with l above the solid, bols, stepped line, table 15 is recommended.
30	28.95	31.05	10	14	7	12
35	33.75	36.25	15	19	12	17
40	38.75	41.25	20	24	17	22	11.75	18
45	43.75	46.25	25	29	22	27	16.75	23	11.5	19
50	48.75	51.25	30	34	27	32	21.75	28	16.5	24
55	33.5	56.5			32	37	26.75	33	21.5	29	16.25	25
60	58.5	61.5			37	42	31.75	38	26.5	34	21.25	30
65	63.5	66.5					36.75	43	31.5	39	26.25	35	17	27
70	68.5	71.5					41.75	48	36.5	44	31.25	40	22	32
80	79.4	80.6					51.75	58	46.5	54	41.25	50	32	42	21.5	34
90	89.3	90.7							56.5	64	51.25	60	42	52	31.5	44
100	99.3	100.7							66.5	74	61.25	70	52	62	41.5	54
110	109.3	110.7									71.25	80	62	72	51.5	64
120	118.25	121.75									81.25	90	72	82	61.5	74
130	128	132											76	86	65.5	78
140	138	142											86	96	75.5	88
150	148	152											96	106	85.5	98
160	156	164											106	116	95.5	108
180	176	184													115.5	128
200	195.4	204.6													135.5	148
220	215.4	224.6
240	235.4	244.6
260	254.8	265.2
280	274.84	285.2
300	294.8	305.2
320	34.3	325.7
340	334.3	345.7
360	354.3	365.7
380	374.3	385.7
400	394.3	405.7
420	413.7	426.3
440	433.7	446.3
460	453.7	466.3
480	473.7	486.3
500	493.7	506.3

Unit:mm

Designation of thread (d)			M24		M30		M36		M42		M48		M56		M64
P^a)			3		3.5		4		4.5		5		5.5		6
b (informative)		b)	54		64		--		--		--		--		--
		c)	60		72		84		96		108		--		--
		d)	73		85		97		109		121		137		153
c	max.		0.8		0.8		0.8		1		1		1		1
d_a	max.		28.4		35.4		42.4		48.6		56.6		67		75
d_s	max.		24.84		30.84		37		43		49		57.2		65.2
d_s	min.		23.16		29.16		35		41		47		54.8		62.8
d_w	min.		33.25		42.75		51.11		59.95		69.45		78.66		88.16
e	min.		39.55		50.85		60.79		71.3		82.6		93.56		104.86
k	Reference dimensions		15		18.7		22.5		26		30		35		40
	max.		15.9		19.75		23.55		27.05		31.05		36.25		41.25
	min.		14.1		17.65		21.45		24.95		28.95		33.75		38.75
k_w a)	min.		9.87		12.36		15.02		17.47		20.27		23.63		27.13
r	min.		0.8		1		1		1.2		1.6		2		2
s	Reference dimension = max.		36		46		55.0		65.0		75.0		85.0		95.0
s	min.		35		45		53.8		63.1		73.1		82.8		92.8
l			l_g and l_g^D
nominal length	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
25	23.95	26.05	For Sizes of bolts with l above the solid, bols, stepped line, table 15 is recommended.
30	28.95	31.05
35	33.75	36.25
40	38.75	41.25
45	43.75	46.25
50	48.75	51.25
55	33.5	56.5
60	58.5	61.5
65	63.5	66.5
70	68.5	71.5
80	79.4	80.6
90	89.3	90.7
100	98.3	101.75	31	46
110	108.25	111.75	41	56
120	118.25	121.75	51	66	36.5	54
130	128	132	55	70	40.5	58
140	138	142	65	80	50.5	68	36	56
150	148	152	75	90	60.5	78	46	66
160	156	164	85	100	70.5	88	56	76
180	176	184	105	120	90.5	108	76	96	61.5	84
200	195.4	204.6	125	140	110.5	128	96	116	81.5	104	67	92
220	215.4	224.6	132	147	117.5	135	103	123	88.5	111	74	99
240	235.4	244.6	152	167	137.5	155	123	143	108.5	131	94	119	75.5	103
260	254.8	265.2			157.5	175	143	163	128.5	151	114	139	95.5	123	77	107
280	274.84	285.2			177.5	195	163	183	148.5	171	134	159	115.5	143	97	127
300	294.8	305.2			197.5	215	183	203	168.5	191	154	179	135.5	163	117	147
320	34.3	325.7					203	223	188.5	211	174	199	155.5	183	137	167
340	334.3	345.7					223	243	208.5	231	194	219	175.5	203	157	187
360	354.3	365.7					243	263	228.5	251	214	239	195.5	223	177	207
380	374.3	385.7							248.5	271	234	259	215.5	243	197	227
400	394.3	405.7							268.5	291	254	279	235.5	263	217	247
420	413.7	426.3							288.5	311	274	299	255.5	283	237	267
440	433.7	446.3									294	319	275.5	303	257	287
460	453.7	466.3									314	339	295.5	323	277	307
480	473.7	486.3									334	359	315.5	343	297	327
500	493.7	506.3											335.5	363	317	347
Preferred lengths are defined in terms of l_s and l_g. Notes P is the pitch of the thread. For l_nom ≤ 125 mm. For 125 mm < l_nom≤ 200 mm. For l_nom > 200 mm. k_w.min = 0.7 k_min l_g.max = l_nom. - b l_s.min = l_g.max - 5

Dimensions of nominal diameter hexagon head bolt, coarse, product grades C (second selection)

Unit:mm

Designation of thread (d)			M14		M18		M22		M27		M33
P^a)			2		2.5		2.5		3		3.5
b (informative)		b)	34		42		50		60		--
		c)	40		48		56		66		78
		d)	53		61		69		79		91
c	max.		0.66		0.8		0.8		0.8		0.8
d_a	max.		16.7		21.2		26.4		32.4		38.4
d_s	max.		14.7		18.7		22.84		27.84		34
d_s	min.		13.3		17.3		21.16		26.16		32
d_w	min.		19.15		24.85		31.35		38		46.55
e	min.		22.78		29.56		37.29		45.2		55.37
k	Reference dimensions		8.8		11.5		14		17		21
	max.		9.25		12.4		14.9		17.9		22.05
	min.		8.35		10.6		13.1		16.1		19.95
k_w e)	min.		5.85		7.42		9.17		11.27		13.97
r	min.		0.6		0.6		0.8		1		1
s	Reference dimension = max.		21.00		27.00		34		41		50
s	min.		20.16		26.16		33		40		49
l			l_g and l_g^D
nominal length	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
60	58.5	61.5	16	26	For Sizes of bolts with l above the solid, bold, stepped line, table 20 is recommended.
65	63.5	66.5	21	31
70	68.75	71.5	26	36
80	78.5	81.5	36	46	25.5	38
90	88.25	91.75	46	56	35.5	48	27.5	40
100	98.25	101.75	56	76	45.5	58	37.5	50
110	108.25	111.75	66	76	55.5	68	47.5	60	35	50
120	118.25	121.75	76	86	65.5	78	57.5	70	45	60
130	128	132	80	90	69.5	82	61.5	74	49	64	34.5	52
140	138	142	90	100	79.5	92	71.5	84	59	74	44.5	62
150	148	152			89.5	102	81.5	94	69	84	54.5	72
160	156	164			99.5	112	91.5	104	79	94	64.5	82
180	176	184			119.5	132	111.5	124	99	114	84.5	102
200	195.4	204.6					131.5	144	119	134	104.5	122
220	215.4	224.6					138.5	151	126	141	111.5	129
240	235.4	244.6							146	161	131.5	149
260	254.8	265.2							166	181	131.5	149
280	274.84	285.2									171.5	189
300	294.8	305.2									191.5	209
320	314.3	325.7									211.5	229
340	334.3	345.7
360	354.3	365.7
380	374.3	385.7
400	394.3	405.7
420	413.7	426.3
440	433.7	446.3
460	453.7	466.3
480	473.7	486.3
500	493.7	506.3
Preferred lengths are defined in terms of l_s and l_g. Notes P is the pitch of the thread. For l_nom ≤ 125 mm. For 125 mm < l_nom≤ 200 mm. For l_nom > 200 mm. k_w.min = 0.7 k_min l_g.max = l_nom. - b l_s.min = l_g.max - 5

Unit:mm

Designation of thread (d)			M39		M45		M52		M60
P^a)			4		4.5		5		5.5
b (informative)		b)	--		--		--		--
		c)	90		102		116		--
		d)	103		115		129		145
c	max.		1		1		1		1
d_a	max.		45.4		52.6		62.6		71
d_s	max.		40		46		53.2		61.2
d_s	min.		38		46		53.2		61.2
d_w	min.		55.86		64.7		74.2		83.41
e	min.		66.44		76.95		88.25		99.21
k	Reference dimensions		25		28		33		38
	max.		26.05		29.05		34.25		39.25
	min.		23.95		26.95		31.75		36.75
k_w e)	min.		16.77		18.87		22.23		25.73
r	min.		1		1.2		1.6		2
s	Reference dimension = max.		60.0		70.0		80.0		90.0
s	min.		58.8		68.1		78.1		87.8
l			l_g and l_g^D
nominal length	min.	max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.	l_s min.	l_g max.
60	58.5	61.5		For Sizes of bolts with l above the solid, bols, stepped line, table 15 is recommended.
65	63.5	66.5
70	68.5	71.5
80	78.5	81.5
90	89.25	91.75
100	98.25	101.75
110	108.25	111.75
120	118.25	121.75
130	128	132
140	138	142
150	148	152	40	60
160	156	164	50	70
180	176	184	70	90	55.5	78
200	195.4	204.6	90	110	75.5	98	59	84
220	215.4	224.6	97	117	82.5	105	66	91
240	235.4	244.6	117	137	102.5	125	86	111	67.5	95
260	254.8	265.2	137	157	122.5	145	106	131	87.5	115
280	274.84	285.2	157	177	142.5	165	126	151	107.5	135
300	294.8	305.2	177	197	162.5	185	146	171	127.5	155
320	314.3	325.7	197	217	182.5	205	166	191	147.5	175
340	334.3	345.7	217	237	202.5	225	186	211	167.5	195
360	354.3	365.7	237	257	222.5	245	206	231	187.5	215
380	374.3	385.7	257	277	242.5	265	226	251	207.5	235
400	394.3	405.7	277	297	262.5	285	246	271	227.5	255
420	413.7	426.3			282.5	305	266	291	247.5	275
440	433.7	446.3			302.5	325	286.5	311	257.5	295
460	453.7	466.3					306	331	287.5	315
480	473.7	486.3					326	351	307.5	335
500	493.7	506.3					346	371	327.5	355
Preferred lengths are defined in terms of l_s and l_g. Notes P is the pitch of the thread. For l_nom ≤ 125 mm. For 125 mm < l_nom≤ 200 mm. For l_nom > 200 mm. k_w.min = 0.7 k_min l_g.max = l_nom. - b l_s.min = l_g.max - 5

Product specifications of nominal diameter hexagon head bolts, coarse, product grade C

Material		Steel
General requirements	Applicable standard	JIS B 1099
Thread	Tolerance class	8g
Thread	Applicable standard	JIS B 0205-4, JIS B 0209-1
Mechanical properties	Property class^a)	d ≤ 39 mm: 4.6, 4.8 d > 39 mm: as agreed
Mechanical properties	Applicable standard	d ≤ 39 mm: JIS B 1051 d > 39 mm: as agreed
Tolerance	Product grade	C
Tolerance	Applicable standard	JIS B 1021
Finish--Coating		As processed Requirements forb electroplating are specified in JIS B 1044. Requirements for non-electrolytically applied zinc flake coatings are specified in JIS B 1046. Additional requirements or other finishes or coatings shall be agreed between the purchaser and the manufacturer.
Acceptabolity		Acceptance inspection is specified in JIS B 1091.
Note ^a) Other property classes are specified in JIS B 1051.