JIS B 1180 Standard

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

Nominal diamter hexagon head bolts, fine, product grades A and B

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

Notes

β = 15° to 30°
Point shall be chamfered.(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, fine, product grade A and B (first selection)

Unit:mm

Designation of thread d x P					M8x1		M10x1		M12x1.5		M16x1.5		M20x1.5		M24x2		M30x2		M36x2		M42x3		M48x3		M56x4		M64x4
b (informative)			a)		22		26		30		38		46		54		66		--		--		--		--		--
			b)		28		32		36		44		52		60		72		84		96		108		--		--
			c)		41		45		49		57		65		73		85		97		109		121		137		153
c			max.		0.60		0.60		0.60		0.8		0.8		0.8		0.8		0.8		1.0		1.0		1.0		1.0
c			min.		0.15		0.15		0.15		0.2		0.2		0.2		0.2		0.2		0.3		0.3		0.3		0.3
d_a			max.		9.22		11.2		13.7		17.7		22.4		26.4		33.4		39.4		45.6		52.6		63		71
d_s	Reference dimensions max.				8.00		10.00		12.50		16.00		20.00		24.00		30.00		36.00		42.00		48.00		56.00		64.00
	Product grade	A	min.		7.78		9.78		11.73		15.73		19.67		23.67		--		--		--		--		--		--
	Product grade	B	min.		7.64		9.64		11.57		15.57		19.48		23.48		29.48		35.38		41.38		47.38		55.26		63.26
d_w	Product grade	A	min.		11.63		14.63		16.63		22.49		28.19		33.61		--		--		--		--		--		--
d_w	Product grade	B	min.		11.47		14.47		16.47		22		27.7		33.25		42.75		51.11		59.95		69.45		78.66		88.16
e	Product grade	A	min.		14.38		17.77		20.03		26.75		33.53		39.98		--		--		--		--		--		--
e	Product grade	B	min.		14.2		17.59		19.85		26.17		32.95		39.55		50.85		60.79		71.3		82.6		93.56		104.86
l_t			max.		2		2		3		3		4		4		6		6		8		10		12		13
k	Reference dimensions				5.3		6.4		7.5		10		12.5		15		18.7		22.5		26		30		35		40
	Product grade	A	max.		5.45		6.58		7.68		10.18		12.715		15.215		--		--		--		--		--		--
	Product grade	A	min.		5.15		6.22		7.32		9.82		12.285		15.215		--		--		--		--		--		--
	Product grade	B	max.		5.54		6.69		7.79		10.29		12.85		15.35		19.12		22.92		26.42		30.42		35.5		40.5
	Product grade	B	min.		5.06		6.11		7.21		9.71		12.15		14.65		18.28		22.08		25.58		29.58		34.5		39.5
k_w d)	Product grade	A	min.		3.61		4.35		5.12		6.87		8.6		10.35		--		--		--		--		--		--
k_w d)	Product grade	B	min.		3.54		4.28		5.05		6.8		8.51		10.26		12.8		15.46		17.91		20.71		24.15		27.65
r			min.		0.4		0.4		0.6		0.6		0.8		0.8		1		1		1.2		1.6		2		2
s	Reference dimension = max.				13.00		16.00		18.00		24.50		30.00		36.00		46		55.0		65.0		75.0		85.0		95.0
	Product grade	A	min.		12.73		15.73		17.73		23.67		29.67		35.38		--		--		--		--		--		--
	Product grade	B	min.		12.57		15.57		17.57		23.16		29.16		35		45		53.8		63.1		73.1		82.8		92.8
	Product grade				l_s and l_g^a)
	A		B		l_s and l_g^a)
	l				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.	l_s min.	l_g max.	l_s min.	l_g max.
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.	l_s min.	l_g max.	l_s min.	l_g max.
35	34.5	355	--	--										For Sizes of bolts with l above the solid, bols, stepped line, table 15 is recommended.
40	39.5	40.5	--	--	11.75	18
45	44.5	45.5	--	--	16.75	23	11.5	19
50	49.5	50.5	--	--	21.75	28	16.5	24	11.25	20
55	54.4	55.6	--	--	26.75	33	21.5	29	16.25	25
60	59.4	60.6	--	--	31.75	38	26.5	34	21.25	30
65	64.4	65.6	--	--	36.75	43	31.5	39	26.25	35	17	27
70	69.4	70.6	--	--	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	88.25	91.75			56.5	64	51.25	60	42	52	31.5	44
100	99.3	100.7	98.25	101.75			66.5	74	61.25	70	52	62	41.5	54	31	46
110	109.3	110.7	108.25	111.75					71.25	80	62	72	51.5	64	41	56
120	119.3	120.7	118.25	12.75					81.25	90	72	82	61.5	74	51	66	36.5	54
130	129.2	130.8	128	132							76	86	66.5	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									115.5	128	105	120	90.5	108	76	96	61.5	84
200	--	--	197.7	202.3									13.5	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	--	--	337.15	342.85															223	243	208.5	231	194	219	175.5	203	157	187

Unit:mm

Designation of thread d x P					M8 x 1		M10 x 1		M12 x 1.5		M16 x 1.5		M20 x 1.5		M24 x 2		M30 x 2		M36 x 3		M42 x 3		M48 x 3		M56 x 4		M64 x 4
	Product grade				l_s and l_g^e)
	A		B		l_s and l_g^e)
	l				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.	l_s min.	l_g max.	l_s min.	l_g max.
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.	l_s min.	l_g max.	l_s min.	l_g max.
360	--	--	357.15	362.85															243	263	228.5	251	214	239	195.5	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	217	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	375.5	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: --- for product grade A, above the discontinuous, stepped line; --- for product grade B, below this stepped line. Notes a) For l_nom ≤ 125 mm. b) For 125 mm < l_nom ≤ 200 mm. c) For l_nom > 200 mm. d) k_w,min = 0.7 k_min e)l_{g. min} = l_nom - b l_s.min = l_g,max - 5P P is th pitch of the thread (see JIS B 0205-2).

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

Unit:mm

Designation of thread d x p					M10 x 1.25		M12 x 1.25		M14 x 1.5		M18 x 1.5		M20 x 2		M22 x 1.5		M27 x 2		M33 x 2		M39 x 3		M45 x 3		M52 x 4		M60 x 4
b (informative)			a)		26		30		34		42		46		50		60		--		--		--		--		--
			b)		32		36		40		48		52		56		66		78		90		102		116		--
			c)		45		49		57		61		65		69		79		91		103		115		129		145
c			max.		0.60		0.60		0.60		0.8		0.8		0.8		0.8		0.8		1.0		1.0		1.0		1.0
c			min.		0.15		0.15		0.15		0.2		0.2		0.2		0.2		0.2		0.3		0.3		0.3		0.3
d_a			max.		11.2		13.7		15.7		20.2		22.4		24.4		30.4		36.4		42.4		48.4		56.4		67
d_s	Reference dimensions max.				10.00		12.00		14.00		18.00		20.00		22.00		27.00		33.00		39.00		45.00		52.00		60.00
	Product grade	A	min.		9.78		11.73		13.73		17.73		19.67		21.67		--		--		--		--		--		--
	Product grade	B	min.		9.64		11.57		13.54		17.57		19.48		21.48		26.48		32.38		38.38		44.38		51.26		59.26
d_w	Product grade	A	min.		14.63		16.63		19.37		25.34		28.19		31.71		--		--		--		--		--		--
d_w	Product grade	B	min.		14.47		16.47		19.15		24.85		27.7		31.35		38		46.55		55.86		64.7		74.2		83.41
e	Product grade	A	min.		17.77		20.03		23.36		30.14		33.53		37.72		--		--		--		--		--		--
e	Product grade	B	min.		17.59		19.58		22.78		29.56		32.56		37.29		45.2		55.37		64.44		76.95		88.25		99.21
l_t			max.		2		3		3		3		4		4		6		6		6		8		10		12
k	Reference dimensions				6.4		7.5		8.8		11.5		12.5		14		17		21		25		28		33		38
	Product grade	A	max.		6.58		7.68		9.98		11.715		12.715		14.715		--		--		--		--		--		--
	Product grade	A	min.		6.22		7.32		8.62		11.285		12.285		13.785		--		--		--		--		--		--
	Product grade	B	max.		6.69		7.79		9.09		11.85		12.85		14.35		17.35		21.42		25.42		28.42		33.5		38.5
	Product grade	B	min.		6.11		7.21		8.51		11.15		12.15		13.65		16.65		20.58		24.58		27.58		32.5		37.5
k_w d)	Product grade	A	min.		4.35		5.12		6.03		7.9		8.6		9.65		--		--		--		--		--		--
k_w d)	Product grade	B	min.		4.28		5.05		5.96		7.81		8.51		9.56		11.66		14.41		17.21		19.31		22.75		26.25
r			min.		0.4		0.6		0.6		0.6		0.8		0.8		1		1		1		1.2		1.6		2
s	Reference dimension = max.				16.00		18.00		21.00		27.00		30.00		34.00		41		50		60.0		70.0		80.0		90.0
	Product grade	A	min.		15.73		17.73		20.67		26.67		29.67		33.38		--		--		--		--		--		--
	Product grade	B	min.		15.57		17.57		20.16		26.16		29.16		33.00		40		49		58.8		68.1		78.1		87.8
Designation of thread d x P					M10 x 1.25		M12 x 1.25		M14 x 1.5		M18 x 1.5		M20 x 2		M22 x 1.5		M27 x 2		M33 x 2		M39 x 3		M45 x 3		M52 x 4		M60 x 4
	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.	l_s min.	l_g max.	l_s min.	l_g max.
45	45.5	45.5	--	--	11.5	19								For sizes of bolts with l above the solid, bold, stepped line, table 16 is recommended.
50	49.5	50.5	--	--	16.5	24	11.25	20
55	54.4	55.6	--	--	21.5	29	16.25	25
60	59.4	60.6	--	--	26.5	34	21.25	30	16	26
65	64.4	65.6	--	--	31.5	39	26.25	35	21	31
70	69.4	70.6	--	--	36.5	44	31.25	40	26	36	15.5	28
80	79.4	80.6	--	--	46.5	54	41.25	50	36	46	25.5	38	21.5	34
90	89.3	90.7	--	--	56.5	64	51.25	60	46	56	35.5	48	31.5	44	27.5	40
100	99.3	100.7	--	--	66.5	74	61.25	70	56	66	45.5	58	41.5	54	37.5	50
110	109.3	110.7	108.25	111.75			71.25	80	66	76	55.5	68	51.5	64	47.5	60	35	50
120	119.3	120.7	118.25	121.75			81.25	90	76	86	65.5	78	61.5	74	57.5	70	45	60
130	129.2	130.8	128	132					80	90	69.5	82	65.5	78	61.5	74	49	64	34.5	52
140	139.2	140.8	138	142					90	100	79.5	92	75.5	88	71.5	84	59	74	44.5	62
150	149.2	150.8	148	152							89.5	102	85.5	98	81.5	94	69	84	54.5	72	40	60
160	--	--	158	162							99.5	112	95.5	108	91.5	104	79	94	64.5	82	50	70
180	--	--	178	182							119.5	132	111.5	128	111.5	124	99	114	84.5	102	70	90	55.5	78
200	--	--	197.7	202.3									131.5	148	131.5	144	119	134	104.5	122	90	110	75.5	98	59	84
220	--	--	217.7	222.3											138.5	151	126	141	111.5	129	97	117	82.5	105	66	91
240	--	--	237.7	242.3													146	161	131.5	149	117	137	102.5	125	86	111	67.5	95
260	--	--	257.4	262.6													166	181	151.5	169	137	157	122.5	145	106	131	87.5	115
280	--	--	277.4	282.6															171.5	189	157	177	142.5	165	126	151	107.5	135
300	--	--	297.4	302.6															191.5	209	177	197	162.5	185	146	171	127.5	155
320	--	--	317.15	322.85															211.5	229	197	217	182.5	205	166	191	147.5	175
340	--	--	337.15	342.85																	217	237	202.5	225	186	211	167.5	195

Unit:mm

Designation of thread d x P					M10 x 1.25		M12 x 1.25		M14 x 1.5		M18 x 1.5		M20 x 2		M22 x 1.5		M27 x 2		M33 x 2		M39 x 3		M45 x 3		M52 x 4		M60 x 4
	Product grade				l_s and l_g^e)
	A		B		l_s and l_g^e)
	l				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.	l_s min.	l_g max.	l_s min.	l_g max.
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.	l_s min.	l_g max.	l_s min.	l_g max.
360	--	--	357.15	362.85																	237	257	222.5	245	206	231	187.5	215
380	--	--	377.15	382.85																	257	277	242.5	265	226	251	207.5	235
400	--	--	397.15	402.85																			262.5	285	246	271	227.5	255
420	--	--	416.85	423.15																			282.5	305	266	291	247.5	275
440	--	--	436.85	443.15																			302.5	325	286	311	267.5	295
460	--	---	456.85	463.15																					306	331	287.5	315
480	--	---	476.85	483.15																					326	351	307.5	335
500	--	---	496.85	503.15																							327.5	355
Prefered lengths are defined in terms of l_s and l_g: --- for product grade A, above the discontinuous, stepped line; --- for product grade B, below this stepped line. Notes a) For l_nom ≤ 125 mm. b) For 125 mm < l_nom ≤ 200 mm. c) For l_nom > 200 mm. d) k_w,min = 0.7 k_min e)l_{g. min} = l_nom - b l_s.min = l_g,max - 5P P is th pitch of the thread (see JIS B 0205-2).

Product specifications of nominal diameter hexagon head bolts, fine, 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.
Notes a) Other property classes are specified in JIS B 1051 for steel and JIS B 1054-1 for stainless steel, respectively. b) Whichever is the shorter.