Click Specification

External Tooth-Lock Washers (SAE J403, J405, ASTM B591)

ASME B 18.21.1 - 2009 (R2016)

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Size

10#

12#

1/4

5/16

3/8

d	max
	min
d_c	max
	min
t	max
	min

0.109	0.123	0.136	0.150	0.176	0.204	0.231	0.267	0.332	0.398
0.102	0.115	0.129	0.141	0.168	0.195	0.221	0.256	0.320	0.384
0.235	0.260	0.285	0.320	0.381	0.410	0.475	0.510	0.610	0.694
0.220	0.245	0.270	0.305	0.365	0.395	0.460	0.494	0.588	0.670
0.016	0.018	0.020	0.022	0.023	0.024	0.027	0.028	0.034	0.040
0.010	0.012	0.014	0.016	0.018	0.018	0.020	0.023	0.028	0.032

Size

7/16

1/2

9/16

5/8

11/16

3/4

13/16

7/8

d	max
	min
d_c	max
	min
t	max
	min

0.464	0.530	0.596	0.663	0.728	0.795	0.861	0.927	1.060
0.448	0.513	0.576	0.641	0.704	0.768	0.833	0.897	1.025
0.760	0.900	0.985	1.070	1.155	1.260	1.315	1.410	1.620
0.740	0.880	0.960	1.045	1.130	1.220	1.290	1.380	1.590
0.040	0.045	0.045	0.050	0.050	0.055	0.055	0.060	0.067
0.032	0.037	0.037	0.042	0.042	0.047	0.047	0.052	0.059

Alternative history

ANSI/ASME B 18.21.1 - 2009 ASME 18.21.12006 - (R2016)

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Similar Standards

1	[DIN] DIN 6798 (A) - 1988	Serrated Lock Washers - Type A, with External Teeth View Suppliers
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