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USA Standard Mesh Chart

Mesh Number	Mesh Openings- Microns	Mesh openings- m.m.	Mesh Openings- Inches	wire Diameter- m.m.	Wire Diameter- Inches
4.25"	106000	106	4.25	6.30	0.2480
4"	100000	100	4.00	6.30	0.2480
3.50"	90000	90	3.50	6.30	0.2480
3"	75000	75	3.00	6.30	0.2480
2.50"	63000	63	2.50	5.60	0.2205
2.12"	53000	53	2.12	5.00	0.1969
2"	50000	50	2.00	5.00	0.1969
1.75"	45000	45	1.75	4.50	0.1771
1.50"	37500	37.5	1.50	4.50	0.1771
1.250"	31500	31.50	1.25	4.00	0.1575
1.06"	26500	26.50	1.06	3.55	0.1397
1"	25000	25	1.00	3.55	0.139
7/8"	22400	22.4	0.875	3.55	0.139
3/4"	19000	19.0	0.750	3.15	0.1240
5/8"	16000	16.0	0.625	3.15	0.1240
.530"	13200	13.2	0.530	2.80	0.1102
1/2"	12500	12.5	0.500	2.50	0.098
7/16	11200	11.2	0.438	2.50	0.098
3/8"	9500	9.5	0.375	2.24	0.088
5/16	8000	8.00	0.312	2.00	0.078
.265"	6700	6.7	0.265	1.80	0.070
#3 (1/4")	6300	6.3	0.250	1.80	0.070
#3-1/2	5600	5.66	0.233	1.60	0.063
#4	4750	4.75	0.187	1.60	0.063
#5	4000	4.00	0.157	1.40	0.055
#6	3350	3.35	0.132	1.25	0.049
1/8"	3170	3.17	0.125	1.04	0.041
#7	2800	2.80	0.111	1.12	0.044
#8	2360	2.36	0.0937	1.00	0.039
#10	2000	2.00	0.0787	0.900	0.035
#12	1700	1.70	0.0661	0.800	0.031
#14	1400	1.40	0.0555	0.710	0.027
#16	1180	1.18	0.0469	0.630	0.024
#18	1000	1.00	0.0394	0.560	0.022
#20	850	0.850	0.0331	0.500	0.019
#25	710	0.710	0.0278	0.450	0.017
#30	600	0.600	0.0234	0.400	0.015
#35	500	0.500	0.0197	0.315	0.012
#40	425	0.425	0.0165	0.280	0.011
#45	355	0.355	0.0139	0.224	0.008
#50	300	0.300	0.0117	0.200	0.007
#60	250	0.250	0.0098	0.160	0.006
#70	212	0.212	0.0083	0.140	0.005
#80	180	0.180	0.0070	0.125	0.004
#100	150	0.150	0.0059	0.100	0.003
#120	125	0.125	0.0049	0.090	0.003
#140	106	0.106	0.0041	0.071	0.0027
#170	90	0.090	0.0035	0.063	0.0024
#200	75	0.075	0.0029	0.050	0.0019
#230	63	0.063	0.0025	0.045	0.0017
#270	53	0.053	0.0021	0.036	0.0014
#325	45	0.045	0.0017	0.032	0.0012
#400	38	0.038	0.0015	0.030	0.0011
#450	32	0.032	0.0012	0.028	0.0011
#500	25	0.025	0.0010	0.025	0.0009
#635	20	0.020	0.0008	0.020	0.0007
15 micron	15	.015
#850	10	0.010	0.0004
5 micron	5	0.005
2 micron	2	0.002

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