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Unit:inch

Hex Lag Screws

ASME B 18.2.1 - 2010

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美标ASME B18.2.1 - 2010 ASME18.2.1 18.2.1A Hex Lag Screws

Screw Thread
d

10#

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1

1-1/8

1-1/4

d_s	max
d_s	min
s	max
s	min
e	max
e	min
k	max
k	min
L₀	min
r	max
r	min

0.199	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022	1.149	1.277
0.178	0.237	0.298	0.36	0.421	0.482	0.605	0.729	0.852	0.976	1.098	1.223
0.281	0.438	0.5	0.562	0.625	0.75	0.938	1.125	1.312	1.5	1.688	1.875
0.271	0.425	0.484	0.544	0.603	0.725	0.906	1.088	1.269	1.45	1.631	1.812
0.323	0.505	0.577	0.65	0.722	0.866	1.083	1.299	1.516	1.732	1.949	2.165
0.309	0.484	0.552	0.62	0.687	0.826	1.033	1.24	1.447	1.653	1.859	2.066
0.14	0.188	0.235	0.268	0.316	0.364	0.444	0.524	0.604	0.7	0.78	0.876
0.11	0.15	0.195	0.226	0.272	0.302	0.378	0.455	0.531	0.591	0.658	0.749
0.094	0.094	0.125	0.125	0.156	0.156	0.312	0.375	0.375	0.625	0.625	0.625
0.03	0.03	0.03	0.03	0.03	0.03	0.06	0.06	0.06	0.09	0.09	0.09
0.01	0.01	0.01	0.01	0.01	0.01	0.02	0.02	0.02	0.03	0.03	0.03

Alternative history

ANSI/ASME B 18.2.1 - 1996 ASME B 18.2.1 - 2010 ASME B 18.2.1 - 2012

Similar Standards

1		[DIN] DIN 571 - 2016	Hexagon Head Wood Screws
2		[ASME] ASME B 18.2.1 - 2012	Hex Lag Screws [Table 15] (ASTM A307 / F593 / F468 / A394)
3		[DIN] DIN 571 - 1986	Hexagon head wood screws
4		[ASME] ASME B 18.2.1 - 2010	Square Lag Screws
5		[ASME/ANSI] ASME/ANSI B 18.2.3.8M - 1991	Metric Hexagon Lag Screws
6		[ASME] ASME B 18.2.1 - 2012	Square Lag Screws [Table 14] (ASTM A307 / F593 / F468 / A394)
7		[DIN] DIN 571 - 2008	Hexagon head wood screws
8		[ASME] ASME B 18.2.1 - 1996	Square Lag Screws [Table 8]
9		[DIN] DIN 571 - 2010	Hexagon head wood screws
10		[ASME] ASME B 18.2.1 - 1996	Hexagon Head Wood Screws
11		[NF] NF E 25-608 - 1985	Square Head Wood Screws
12		[UNI] UNI 704	Hexagon Head Wood Screws
13		[GB] GB 102 - 1986	Hexagon Head Wood Screws
14		[NF] NF E 25-607 - 1985	Woodscrews-Hexagon Lag Screws - Symbol H
15		[AS] AS /NZS 1393 - 1996	Coach Screws - Metric Series With ISO Hexagon Heads