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Unit:inch

Countersunk Bolts and Slotted Countersunk Bolts,(Inch Series)

ASME/ANSI B 18.5 - 2008

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美标ASME/ANSI B18.5 - 2008 ASME/ANSI18.5 1 Countersunk Bolts and Slotted Countersunk Bolts,(Inch Series)

Screw Thread
d

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1

1-1/8

1-1/4

1-3/8

1-1/2

d_s	max
	min
d_k	max
	min
k	max
	min
n	max
	min
t	max
	min

0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531
0.237	0.298	0.36	0.421	0.483	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47
0.493	0.618	0.74	0.803	0.935	1.169	1.402	1.637	1.869	2.104	2.337	2.571	2.804
0.477	0.598	0.715	0.778	0.905	1.132	1.357	1.584	1.81	2.037	2.262	2.489	2.715
0.15	0.189	0.225	0.226	0.269	0.336	0.403	0.47	0.537	0.604	0.671	0.738	0.805
0.131	0.164	0.196	0.196	0.233	0.292	0.349	0.408	0.466	0.525	0.582	0.641	0.698
0.075	0.084	0.094	0.094	0.106	0.133	0.149	0.167	0.188	0.196	0.211	0.226	0.258
0.064	0.072	0.081	0.081	0.091	0.116	0.131	0.147	0.166	0.178	0.193	0.208	0.24
0.068	0.086	0.103	0.103	0.103	0.137	0.171	0.206	0.24	0.257	0.291	0.326	0.36
0.045	0.057	0.068	0.068	0.068	0.091	0.115	0.138	0.162	0.173	0.197	0.22	0.244

Alternative history

ANSI/ASME B 18.5 - 2008 ANSI/ASME B 18.5 - 2012 ASME B 18.5 - 2012(2017)

Similar Standards

1		[EN] EN 14399 (-7) - 2007	High-strength structural bolting assemblies for preloading - Part 7: System HR — Countersunk head bolt
2		[ASME] ASME B 18.5 - 2012 (2017)	Countersunk Bolts and Slotted Countersunk Bolts [Table7] (A307, SAE J429, F468, F593)
3		[EN] EN 14399 (-7 Cs bolt) - 2018	High-strength structural bolting assemblies for preloading - Part 7: System HR — Countersunk head bolt
4		[ASME/ANSI] ASME/ANSI B 18.5 - 2012	Countersunk Bolts and Slotted Countersunk Bolts [Table7] (A307, SAE J429, F468, F593)
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