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(Non-preferred) dimensions in parentheses.

Unit:mm

High-strength structural bolting assemblies for preloading - Part 7: System HR — Countersunk head bolt

EN 14399 (-7 Cs bolt) - 2018

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欧标EN 14399 (-7 Cs bolt) - 2018 EN14399 1 High-strength structural bolting assemblies for preloading - Part 7: System HR — Countersunk head bolt

Thread Size
d

M12

(M14)

M16

(M18)

M20

M22

M24

M27

M30

M36

P	Pitch
b	L≤125
	125＜L≤200
	L＞200
d_s	max
d_s	min
d_k	max
d_k	min
i	max
i	min
k	Nominal Size
	max
	min
n	max
n	min
t	max
t	min

1.75	2	2	2.5	2.5	2.5	3	3	3.5	4
30	34	38	42	46	50	54	60	66	78
-	40	44	48	52	56	60	66	72	84
-	-	-	-	65	69	73	79	85	97
12.7	14.7	16.7	18.7	20.84	22.84	24.84	27.84	30.84	37
11.3	13.3	15.3	17.3	19.16	21.16	23.16	26.16	29.16	35
24	28	32	36	40	44	48	54	60	72
23.16	27.16	31.16	35	39	43	47	53	58.8	70.8
16.5	19.5	22.5	25.5	28.5	30.5	33.5	37.5	42.5	50.5
15.5	18.5	21.5	24.5	27.5	29.5	32.5	36.5	41.5	49.5
8	9	10	12	13	-	-	-	-	-
8.75	9.75	10.75	12.9	13.9	14.9	16.9	18.4	20.55	24.05
7.25	8.25	9.25	11.1	12.1	13.1	15.1	16.6	18.45	21.95
3	3	3	3.5	3.5	3.5	3.5	3.5	4	4
2.5	2.5	2.5	3	3	3	3	3	3.5	3.5
4.5	4.5	4.5	5	5	5	5	5	5.5	5.5
3	3	3	3.5	3.5	3.5	3.5	3.5	4	4

Alternative history

EN 14399-7 - 2007 EN 14399-7 - 2018

Similar Standards

1		[ASME] ASME B 18.5 - 2012 (2017)	Countersunk Bolts and Slotted Countersunk Bolts [Table7] (A307, SAE J429, F468, F593)
2		[ASME/ANSI] ASME/ANSI B 18.5 - 2012	Countersunk Bolts and Slotted Countersunk Bolts [Table7] (A307, SAE J429, F468, F593)
3		[EN] EN 14399 (-7) - 2007	High-strength structural bolting assemblies for preloading - Part 7: System HR — Countersunk head bolt
4		[ASME/ANSI] ASME/ANSI B 18.5 - 2008	Countersunk Bolts and Slotted Countersunk Bolts,(Inch Series)
5		[NF] NF E 25-801-7 - 2008	High Strength Slotted Bolts For Steel Structure
6		[BS] BS 4933 - 1973	Metric 90°Countersunk Head Bolts