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Type B Plain Washers [Table 2] (ASTM A325 / ANSI 1060)

ANSI B 18.22.1 - 1965 (R1998)

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Nominal Diameter

0#
N

0#
R

0#
W

1#
N

1#
R

1#
W

2#
N

2#
R

2#
W

3#
N

3#
R

3#
W

4#
N

4#
R

4#
W

5#
N

Nominal Size
Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

0.060	0.060	0.060	0.073	0.073	0.073	0.086	0.086	0.086	0.099	0.099	0.099	0.112	0.112	0.112	0.125
N	R	W	N	R	W	N	R	W	N	R	W	N	R	W	N
0.068	0.068	0.068	0.084	0.084	0.084	0.094	0.094	0.094	0.109	0.109	0.109	0.125	0.125	0.125	0.141
0.068	0.068	0.068	0.084	0.084	0.084	0.094	0.094	0.094	0.109	0.109	0.117	0.125	0.133	0.133	0.141
0.063	0.063	0.063	0.079	0.079	0.079	0.089	0.089	0.089	0.104	0.104	0.104	0.12	0.12	0.12	0.136
0.125	0.188	0.250	0.156	0.219	0.281	0.188	0.250	0.344	0.219	0.312	0.406	0.250	0.375	0.438	0.281
0.125	0.188	0.250	0.156	0.219	0.281	0.188	0.250	0.344	0.219	0.312	0.414	0.250	0.383	0.446	0.281
0.12	0.183	0.245	0.151	0.214	0.276	0.183	0.245	0.339	0.214	0.307	0.401	0.245	0.37	0.433	0.276
0.025	0.025	0.025	0.025	0.025	0.032	0.025	0.032	0.032	0.025	0.032	0.040	0.032	0.040	0.040	0.032
0.028	0.028	0.028	0.028	0.028	0.036	0.028	0.036	0.036	0.028	0.036	0.045	0.036	0.045	0.045	0.036
0.022	0.022	0.022	0.022	0.022	0.028	0.022	0.028	0.028	0.022	0.028	0.036	0.028	0.036	0.036	0.028

Nominal Diameter

5#
R

5#
W

6#
N

6#
R

6#
W

8#
N

8#
R

8#
W

10#
N

10#
R

10#
W

12#
N

12#
R

12#
W

1/4
N

1/4
R

Nominal Size
Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

0.125	0.125	0.138	0.138	0.138	0.164	0.164	0.164	0.190	0.190	0.190	0.216	0.216	0.216	0.250	0.250
R	W	N	R	W	N	R	W	N	R	W	N	R	W	N	R
0.141	0.141	0.156	0.156	0.156	0.188	0.188	0.188	0.203	0.203	0.203	0.234	0.234	0.234	0.281	0.281
0.149	0.149	0.156	0.164	0.164	0.196	0.196	0.196	0.211	0.211	0.211	0.242	0.242	0.242	0.296	0.296
0.136	0.136	0.151	0.151	0.151	0.183	0.183	0.183	0.198	0.198	0.198	0.229	0.229	0.229	0.276	0.276
0.406	0.500	0.312	0.438	0.562	0.375	0.500	0.625	0.406	0.562	0.734*	0.438	0.625	0.875	0.500	0.734*
0.414	0.508	0.312	0.446	0.570	0.383	0.508	0.640	0.414	0.570	0.749	0.446	0.640	0.890	0.515	0.749
0.401	0.495	0.307	0.433	0.557	0.37	0.495	0.62	0.401	0.557	0.727	0.433	0.62	0.868	0.495	0.727
0.040	0.040	0.032	0.040	0.040	0.040	0.040	0.063	0.040	0.040	0.063	0.040	0.063	0.063	0.063	0.063
0.045	0.045	0.036	0.045	0.045	0.045	0.045	0.071	0.045	0.045	0.071	0.045	0.071	0.071	0.071	0.071
0.036	0.036	0.028	0.036	0.036	0.036	0.036	0.056	0.036	0.036	0.056	0.036	0.056	0.056	0.056	0.056

Nominal Diameter

1/4
W

5/16
N

5/16
R

5/16
W

3/8
N

3/8
R

3/8
W

7/16
N

7/16
R

7/16
W

1/2
N

1/2
R

1/2
W

9/16
N

9/16
R

9/16
W

Nominal Size
Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

0.250	0.312	0.312	0.312	0.375	0.375	0.375	0.438	0.438	0.438	0.500	0.500	0.500	0.562	0.562	0.562
W	N	R	W	N	R	W	N	R	W	N	R	W	N	R	W
0.281	0.344	0.344	0.344	0.406	0.406	0.406	0.469	0.469	0.469	0.531	0.531	0.531	0.594	0.594	0.594
0.296	0.359	0.359	0.359	0.421	0.421	0.421	0.484	0.484	0.484	0.546	0.546	0.546	0.609	0.609	0.609
0.276	0.339	0.339	0.339	0.401	0.401	0.401	0.464	0.464	0.464	0.526	0.526	0.526	0.589	0.589	0.589
1.000	0.625	0.875	1.125	0.734*	1.000	1.250	0.875	1.125	1.469*	1.000	1.250	1.750	1.125	1.469*	2.000
1.015	0.640	0.890	1.140	0.749	1.015	1.280	0.890	1.140	1.499	1.015	1.280	1.780	1.140	1.499	2.030
0.993	0.62	0.868	1.118	0.727	0.993	1.243	0.868	1.118	1.462	0.993	1.243	1.743	1.118	1.462	1.993
0.063	0.063	0.063	0.063	0.063	0.063	0.100	0.063	0.063	0.100	0.063	0.100	0.100	0.063	0.100	0.100
0.071	0.071	0.071	0.071	0.071	0.071	0.112	0.071	0.071	0.112	0.071	0.112	0.112	0.071	0.112	0.112
0.056	0.056	0.056	0.056	0.056	0.056	0.090	0.056	0.056	0.090	0.056	0.090	0.090	0.056	0.090	0.090

Nominal Diameter

5/8
N

5/8
R

5/8
W

3/4
N

3/4
R

3/4
W

7/8
N

7/8
R

7/8
W

1
N

1
R

1
W

1-1/8
N

1-1/8
R

1-1/8
W

1-1/4
N

Nominal Size
Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

0.625	0.625	0.625	0.750	0.750	0.750	0.875	0.875	0.875	1.000	1.000	1.000	1.125	1.125	1.125	1.250
N	R	W	N	R	W	N	R	W	N	R	W	N	R	W	N
0.656	0.656	0.656	0.812	0.812	0.812	0.938	0.938	0.938	1.062	1.062	1.062	1.188	1.188	1.188	1.312
0.686	0.686	0.686	0.842	0.842	0.842	0.968	0.968	0.968	1.092	1.092	1.092	1.218	1.218	1.218	1.342
0.649	0.649	0.649	0.805	0.805	0.805	0.931	0.931	0.931	1.055	1.055	1.055	1.181	1.181	1.181	1.305
1.250	1.750	2.250	1.375	2.000	2.500	1.469*	2.250	2.750	1.750	2.500	3.000	2.000	2.750	3.250	2.250
1.280	1.780	2.280	1.405	2.030	2.530	1.499	2.280	2.780	1.780	2.530	3.030	2.030	2.780	3.280	2.280
1.243	1.743	2.243	1.368	1.993	2.493	1.462	2.243	2.743	1.743	2.493	2.993	1.993	2.743	3.243	2.243
0.100	0.100	0.160	0.100	0.100	0.160	0.100	0.160	0.160	0.100	0.160	0.160	0.100	0.160	0.160	0.160
0.112	0.112	0.174	0.112	0.112	0.174	0.112	0.174	0.174	0.112	0.174	0.174	0.112	0.174	0.174	0.174
0.090	0.090	0.146	0.090	0.090	0.146	0.090	0.146	0.146	0.090	0.146	0.146	0.090	0.146	0.146	0.146

Nominal Diameter

1-1/4
R

1-1/4
W

1-3/8
N

1-3/8
R

1-3/8
W

1-1/2
N

1-1/2
R

1-1/2
W

1-5/8
N

1-5/8
R

1-5/8
W

1-3/4
N

1-3/4
R

1-3/4
W

1-7/8
N

1-7/8
R

Nominal Size
Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

1.250	1.250	1.375	1.375	1.375	1.500	1.500	1.500	1.625	1.625	1.625	1.750	1.750	1.750	1.875	1.875
R	W	N	R	W	N	R	W	N	R	W	N	R	W	N	R
1.312	1.312	1.438	1.438	1.438	1.562	1.562	1.562	1.750	1.750	1.750	1.875	1.875	1.875	2.000	2.000
1.342	1.357	1.468	1.468	1.483	1.592	1.607	1.607	1.780	1.795	1.795	1.905	1.920	1.920	2.045	2.045
1.305	1.302	1.431	1.431	1.428	1.555	1.552	1.552	1.743	1.74	1.74	1.868	1.865	1.865	1.99	1.99
3.000	3.500	2.500	3.250	3.750	2.750	3.500	4.000	3.000	3.750	4.250	3.250	4.000	4.500	3.500	4.250
3.030	3.545	2.530	3.280	3.795	2.780	3.545	4.045	3.030	3.795	4.295	3.280	4.045	4.545	3.545	4.295
2.993	3.49	2.493	3.243	3.74	2.743	3.49	3.99	2.993	3.74	4.24	3.243	3.99	4.49	3.49	4.24
0.160	0.250	0.160	0.160	0.250	0.160	0.250	0.250	0.160	0.250	0.250	0.160	0.250	0.250	0.250	0.250
0.174	0.266	0.174	0.174	0.266	0.174	0.266	0.266	0.174	0.266	0.266	0.174	0.266	0.266	0.266	0.266
0.146	0.234	0.146	0.146	0.234	0.146	0.234	0.234	0.146	0.234	0.234	0.146	0.234	0.234	0.234	0.234

Nominal Diameter

1-7/8
W

2
N

2
R

2
W

2-1/4
N

2-1/4
R

2-1/4
W

2-1/2
N

2-1/2
R

2-1/2
W

2-3/4
N

2-3/4
R

2-3/4
W

3
N

3
R

3
W

Nominal Size
Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

1.875	2.000	2.000	2.000	2.250	2.250	2.250	2.500	2.500	2.500	2.750	2.750	2.750	3.000	3.000	3.000
W	N	R	W	N	R	W	N	R	W	N	R	W	N	R	W
2.000	2.125	2.125	2.125	2.375	2.375	2.375	2.625	2.625	2.625	2.875	2.875	2.875	3.125	3.125	3.125
2.045	2.170	2.170	2.170	2.420	2.420	2.440	2.670	2.690	2.690	2.920	2.940	2.940	3.190	3.190	3.190
1.99	2.115	2.115	2.115	2.365	2.365	2.365	2.615	2.615	2.615	2.865	2.865	2.865	3.115	3.115	3.115
4.750	3.750	4.500	5.000	4.000	5.000	5.500	4.500	5.500	6.000	5.000	6.000	6.500	5.500	6.500	7.000
4.795	3.795	4.545	5.045	4.045	5.045	5.565	4.545	5.565	6.065	5.045	6.065	6.565	5.565	6.565	7.065
4.74	3.74	4.49	4.99	3.99	4.99	5.49	4.49	5.49	5.99	4.99	5.99	6.49	5.49	6.49	6.99
0.250	0.250	0.250	0.250	0.250	0.250	0.375	0.250	0.375	0.375	0.250	0.375	0.375	0.375	0.375	0.375
0.266	0.266	0.266	0.266	0.266	0.266	0.393	0.266	0.393	0.393	0.266	0.393	0.393	0.393	0.393	0.393
0.234	0.234	0.234	0.234	0.234	0.234	0.357	0.234	0.357	0.357	0.234	0.357	0.357	0.357	0.357	0.357

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