ISO 4017 Bolt Dimension

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ISO 4017 Bolt Dimension

ISO 4017 - Bolt Dimension

Dimensional Standard of Bolts per ISO 4017

• For hot-dip galvanized nuts, the dimensions apply before galvanizing.
• P is the pitch of thread.
• dw, max. = actual
• β = 15⁰ to 30⁰
• Incomplete thread u = 2P

Size	Pitch (p)	Width across corner (e)	Width across Flat (s)		Head Thickness (k)		Thread Length b	Transition Diameter da	Dia. of washer face dw	Radius under head r	Depth of washer face c		Major Diameter (D)		Pitch Diameter (D1)		Minor Diameter (D2)
	MM	*Min.*	*Min.*	*Max.*	*Min.*	*Max.*	-	*Max.*	*Min.*	*Min.*	*Min.*	*Max.*	*Min.*	*Min.*	*Min.*	*Max.*	*Min.*
M-16	2.0	26.17	23.16	24	9.71	10.29	FT	17.70	22.00	0.6	0.2	0.8	15.68	15.96	14.50	14.60	13.80
M-18	2.5	29.56	26.16	27	11.15	11.85	FT	20.20	24.85	0.6	0.2	0.8	17.62	17.96	16.15	16.25	15.25
M-20	2.5	32.95	29.16	30	12.15	12.85	FT	22.40	27.70	0.8	0.2	0.8	19.62	19.96	18.15	18.25	17.25
M-22	2.5	37.29	33.00	34	13.65	14.35	FT	24.40	31.35	0.8	0.2	0.8	21.62	21.96	20.15	20.25	19.25
M-24	3.0	39.55	35.00	36	14.65	15.35	FT	26.40	33.25	0.8	0.2	0.8	23.58	23.95	21.80	21.90	20.70
M-27	3.0	45.20	40.00	41	16.65	17.35	FT	30.40	38.00	1.0	0.2	0.8	26.58	26.95	24.80	24.90	23.70
M30	3.5	50.85	45.00	46	18.28	19.12	FT	33.40	42.75	1.0	0.2	0.8	29.52	29.95	27.50	27.60	26.16
M-33	3.5	55.37	49.00	50	20.58	21.42	FT	36.40	46.55	1.0	0.2	0.8	32.52	32.95	30.50	30.60	29.16
M-36	4.0	60.79	53.80	55	22.08	22.92	FT	39.40	51.11	1.0	0.2	0.8	35.46	35.94	33.15	33.25	31.61
M-39	4.0	66.44	58.80	60	24.58	25.42	FT	42.40	55.86	1.0	0.3	1.0	38.46	38.94	36.20	36.30	34.61
M-42	4.5	71.30	63.10	65	25.58	26.42	FT	45.60	59.95	1.2	0.3	1.0	41.44	41.94	38.80	38.90	37.07
M-45	4.5	76.95	68.10	70	27.58	28.42	FT	48.60	64.70	1.2	0.3	1.0	44.44	44.94	41.80	41.90	40.07
M-48	5.0	82.60	73.10	75	29.58	30.42	FT	52.60	69.45	1.6	0.3	1.0	47.40	47.93	44.50	44.60	42.52
M-52	5.0	88.25	78.10	80	32.50	33.50	FT	56.60	74.20	1.6	0.3	1.0	51.40	51.93	48.50	48.60	46.52
M-56	5.5	93.56	82.80	85	34.50	35.50	FT	63.00	78.66	2.0	0.3	1.0	55.36	55.92	52.10	52.20	49.97
M-60	5.5	99.21	87.80	90	37.50	38.50	FT	67.00	83.41	2.0	0.3	1.0	59.36	59.92	57.85	57.95	53.97
M-64	6.0	104.86	92.80	95	39.50	40.50	FT	71.00	88.16	2.0	0.3	1.0	63.32	63.92	59.80	59.90	57.42

Bolt Shank Length Ls & Lg

L	Total Length	Total Length	Full threading length	Ls	Lg
Nominal length	Min.	Max.	Min -Max.	Min -Max.	Min -Max.
Nominal length	Min.	Max.	Min -Max.	Min -Max.	Min -Max.

70	68.50	71.50	F.T	NA	NA
80	78.50	81.50	F.T	NA	NA
90	88.25	91.75	F.T	NA	NA
100	98.25	101.75	F.T	NA	NA
110	108.25	111.75	F.T	NA	NA
120	118.25	121.75	F.T	NA	NA
130	128.00	132.00	F.T	NA	NA
140	138.00	142.00	F.T	NA	NA
150	148.00	152.00	F.T	NA	NA
160	158.00	162.00	F.T	NA	NA
170	168.00	172.00	F.T	NA	NA
180	178.00	182.00	F.T	NA	NA
190	188.00	192.00	F.T	NA	NA
200	197.70	202.30	F.T	NA	NA
210	207.70	212.30	F.T	NA	NA
220	217.70	222.30	F.T	NA	NA
230	227.70	232.30	F.T	NA	NA
240	237.70	242.30	F.T	NA	NA
250	247.70	252.30	F.T	NA	NA
260	257.40	262.60	F.T	NA	NA
270	267.40	272.60	F.T	NA	NA
280	277.40	282.60	F.T	NA	NA
290	287.40	292.60	F.T	NA	NA
300	297.40	302.60	F.T	NA	NA
310	307.40	312.60	F.T	NA	NA
320	317.15	322.85	F.T	NA	NA
330	327.15	332.85	F.T	NA	NA
340	337.15	342.85	F.T	NA	NA
350	347.15	352.85	F.T	NA	NA
360	357.15	362.85	F.T	NA	NA
370	367.15	372.85	F.T	NA	NA
380	377.15	382.85	F.T	NA	NA
390	387.15	392.85	F.T	NA	NA
400	397.15	402.85	F.T	NA	NA
410	407.15	412.85	F.T	NA	NA
420	416.85	423.15	F.T	NA	NA
430	426.85	433.15	F.T	NA	NA
440	436.85	443.15	F.T	NA	NA
450	446.85	453.15	F.T	NA	NA
460	456.85	463.15	F.T	NA	NA
470	466.85	473.15	F.T	NA	NA
480	476.85	483.15	F.T	NA	NA
490	486.85	493.15	F.T	NA	NA
500	496.85	503.15	F.T	NA	NA

ISO 4017 - Bolt Dimension

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