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ASME B18.2.2 Hex Nut

Leader-Fastener® is a manufacturer and distributor of ASME B18.2.2 Hex Nut. We have a complete line of service from having invested in production plants, export department and to having a quality control team and center to meet your requirements. We regard quality as the life of the company. We persist in good quality as the first policy and have established a set of quality control and inspection system according to the international standard. We have carried out ISO9001 Quality Guarantee System in every course of production, transportation and selling. We do hope we could be your partner in business by topping quality, knight service and competitive price in the near future and be your friends as well.

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Product Description

We offer ASME B18.2.2 Hex Nut American specification fasteners including Hex Jam Nuts, Metric Flange Nuts, Metric Heavy Hex Nuts, Metric Slotted Hex Nuts, Acorn Nuts and Spring Nuts. For custom ASME B18.2.4.1M Metric Hex Nuts, we strictly follow the client’s specification and critical parameter. We satisfied our customer with our services and high-quality product.

Product Specification of Leader-Fastener® ASME B18.2.2 Hex Nut

Material : Carbon steel, Stainless steel, Alloy Steel, Brass.

Finishment: Black, Zinc Plated, Zinc Yellow, HDG, Phosphate, DACROMET, Geomet, Magin, Ruspert, Teflon, etc.

Leader-Fastener® ASME B 18.2.2 - 2022 Hex Machine Screw Nuts [Table 1] (ASTM A563 / F594 / F467)

Screw Thread		0#	1#	2#	3#	4#	5#	6#	8#	10#	12#	1/4	5/16	3/8
d		0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1640	0.1900	0.2160	0.2500	0.3120	0.3750
PP	UNC	80	64	56	48	40	40	32	32	24	24	20	18	16
s	max	0.156	0.156	0.188	0.188	0.25	0.312	0.312	0.344	0.375	0.438	0.438	0.562	0.625
s	min	0.15	0.15	0.18	0.18	0.241	0.302	0.302	0.332	0.362	0.423	0.423	0.545	0.607
k	max	0.05	0.05	0.066	0.066	0.098	0.114	0.114	0.13	0.13	0.161	0.193	0.225	0.257
k	min	0.043	0.043	0.057	0.057	0.087	0.102	0.102	0.117	0.117	0.148	0.178	0.208	0.239

ASME B 18.2.2 - 2022 Hex Flat Nuts and Hex Flat Jam Nuts [Table4] (ASTM A563 / F594 / F467)

Screw Thread		1-1/8	1-1/4	1-3/8	1-1/2
d		1.1250	1.2500	1.3750	1.5000
PP	UNC	7	7	6	6
	UNF	12	12	12	12
	8-UN	8	8	8	8
s	Nominal Size	1-11/16	1-7/8	2-1/16	2-1/4
	min	1.631	1.812	1.994	2.175
	max	1.688	1.875	2.062	2.250
e	min	1.859	2.066	2.273	2.480
e	max	1.949	2.165	2.382	2.598
m	Nominal Size	1	1-3/32	1-13/64	1-5/16
	min	0.970	1.062	1.169	1.276
	max	1.030	1.126	1.237	1.348
m1	Nominal Size	5/8	3/4	13/16	7/8
	min	0.595	0.718	0.778	0.839
	max	0.655	0.782	0.846	0.911

①,Threads shall meet the requirements of ASME B.1

②,If electroplated finishes are required,reference ASTM F1941.Other finishes may be specified as indicated in the applicable mechanical and performance standards.

ASME B 18.2.2 - 2022 Hex Nuts and Hex Jam Nuts [Table 5] (ASTM A563 / F594 / F467)

Screw Thread		1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8
d		0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750
PP	UNC	20	18	16	14	13	12	11	10	9	8	7	7	6
	UNF	28	24	24	20	20	18	18	16	14	12	12	12	12
	8-UN	-	-	-	-	-	-	-	-	-	-	8	8	8
s	min	0.428	0.489	0.551	0.675	0.736	0.861	0.922	1.088	1.269	1.450	1.631	1.812	1.994
s	max	0.438	0.500	0.563	0.688	0.750	0.875	0.938	1.125	1.312	1.500	1.688	1.875	2.062
e	min	0.488	0.557	0.628	0.768	0.840	0.982	1.051	1.240	1.447	1.653	1.859	2.066	2.273
e	max	0.505	0.577	0.650	0.794	0.866	1.010	1.083	1.299	1.516	1.732	1.949	2.165	2.382
m	min	0.212	0.258	0.320	0.365	0.427	0.473	0.535	0.617	0.724	0.831	0.939	1.030	1.138
m	max	0.226	0.273	0.337	0.385	0.448	0.496	0.559	0.665	0.776	0.887	0.999	1.094	1.206
m1	min	0.150	0.180	0.210	0.240	0.302	0.301	0.363	0.398	0.458	0.519	0.579	0.687	0.747
m1	max	0.163	0.195	0.227	0.260	0.323	0.324	0.387	0.446	0.510	0.575	0.639	0.751	0.815
Screw Thread		1-1/2	1-5/8	1-3/4	1-7/8	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4

d		1.5000	1.6250	1.7500	1.8750	2.0000	2.2500	2.5000	2.7500	3.0000	3.2500	3.500	3.7500	4.0000
PP	UNC	6	-	5	-	4-1/2	4-1/2	4	4	4	4	4	4	4
	UNF	12	-	-	-	-	-	-	-	-	-	-	-	-
	8-UN	8	8	8	8	8	8	8	8	8	8	8	8	8
s	min	2.175	2.350	2.538	2.722	2.900	3.263	3.625	3.988	4.350	4.713	5.075	5.438	5.800
s	max	2.250	2.430	2.625	2.813	3.000	3.375	3.750	4.125	4.500	4.875	5.250	5.625	6.000
e	min	2.480	2.679	2.893	3.103	3.306	3.719	4.133	4.546	4.959	5.373	5.786	6.199	6.612
e	max	2.598	2.805	3.031	3.247	3.464	3.897	4.330	4.763	5.196	5.629	6.062	6.495	6.928
m	min	1.245	1.364	1.460	1.567	1.675	1.890	2.105	2.319	2.534	2.749	2.964	3.178	3.393
m	max	1.317	1.416	1.540	1.651	1.763	1.986	2.209	2.431	2.654	2.877	3.011	3.322	3.545
m1	min	0.808	0.868	0.929	0.989	1.050	1.155	1.401	1.522	1.643	1.748	1.870	1.990	2.112
m1	max	0.880	0.944	1.009	1.073	1.138	1.267	1.427	1.556	1.685	1.814	1.943	2.072	2.201

①,Threads shall meet the requirements of ASME B.1

②,If electroplated finishes are required,reference ASTM F1941.Other finishes may be specified as indicated in the applicable mechanical and performance standards.

ASME B 18.2.2 - 2022 Hex Thick Nuts [Table7] (ASTM A563 / F594 / F467)

Screw Thread		1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8	1-1/2
d		0.250	0.3125	0.375	0.4375	0.500	0.5625	0.625	0.750	0.875	1.000	1.125	1.250	1.375	1.500
PP	UNC	20	18	16	14	13	12	11	10	9	8	7	7	6	6
	UNF	28	24	24	20	20	18	18	16	14	12	12	12	12	12
	8-UN	-	-	-	-	-	-	-	-	-	-	8	8	8	8
s	Nominal Size	7/16	1/2	9/16	11/16	3/4	7/8	15/16	1-1/8	1-5/16	1-1/2	1-11/16	1-7/8	2-1/16	2-1/4
	min	0.428	0.489	0.551	0.675	0.736	0.861	0.922	1.088	1.269	1.450	1.631	1.812	1.994	2.175
	max	0.438	0.500	0.562	0.688	0.750	0.875	0.938	1.125	1.312	1.500	1.688	1.875	2.062	2.250
e	min	0.488	0.557	0.628	0.768	0.840	0.892	1.051	1.240	1.447	1.653	1.859	2.066	2.273	2.480
e	max	0.505	0.577	0.650	0.794	0.866	1.010	1.083	1.299	1.516	1.732	1.949	2.165	2.382	2.598
m	Nominal Size	9/32	21/64	13/32	29/64	9/16	39/64	23/32	13/16	29/32	1	1-5/32	1-1/4	1-3/8	1-1/2
	min	0.274	0.320	0.398	0.444	0.552	0.598	0.706	0.798	0.890	0.982	1.136	1.228	1.351	1.474
	max	0.288	0.336	0.415	0.463	0.573	0.621	0.731	0.827	0.922	1.018	1.176	1.272	1.399	1.526

ASME B 18.2.2 - 2022 Heavy Hex Flat Nuts and Heavy Hex Flat Jam Nuts [Table 10] (ASTM A563 / F594 / F467)

Screw Thread		1-1/8	1-1/4	1-3/8	1-1/2	1-3/4	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4
d		1.1250	1.2500	1.3750	1.50000	1.7500	2.0000	2.2500	2.5000	2.7500	3.0000	3.2500	3.5000	3.7500	4.0000
PP	UNC	7	7	6	6	5	4-1/2	4-1/2	4	4	4	4	4	4	4
	UNF	12	12	12	12	-	-	-	-	-	-	-	-	-	-
	8-UN	8	8	8	8	8	8	8	8	8	8	8	8	8	8
s	Nominal Size	1-13/16	2	2-3/16	2-3/8	2-3/4	3-1/8	3-1/2	3-7/8	4-1/4	4-5/8	5	5-3/8	5-3/4	6-1/8
	min	1.756	1.938	2.119	2.300	2.662	3.025	3.388	3.750	4.112	4.475	4.838	5.200	5.562	5.925
	max	1.812	2.000	2.188	2.375	2.750	3.125	3.500	3.875	4.250	4.625	5	5.375	5.750	6.125
e	min	2.002	2.209	2.416	2.622	3.035	3.449	3.862	4.275	4.688	5.102	5.515	5.928	6.341	6.755
e	max	2.093	2.309	2.526	2.742	3.175	3.608	4.041	4.474	4.907	5.340	5.774	6.207	6.640	7.073
m	Nominal Size	1-1/8	1-1/4	1-3/8	1-1/2	1-3/4	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4
	min	1.079	1.187	1.310	1.433	1.679	1.925	2.155	2.401	2.647	2.893	3.124	3.370	3.616	3.862
	max	1.155	1.282	1.409	1.536	1.790	2.044	2.298	2.552	2.806	3.060	3.314	3.568	3.822	4.076
m1	Nominal Size	5/8	3/4	13/16	7/8	1	1-1/8	1-1/4	1-1/2	1-5/8	1-3/4	1-7/8	2	2-1/8	2-1/4
	min	0.579	0.687	0.747	0.808	0.929	1.050	1.155	1.401	1.522	1.643	1.748	1.870	1.990	2.112
	max	0.655	0.782	0.846	0.911	1.040	1.169	1.298	1.552	1.681	1.810	1.939	2.068	2.197	2.326

ASME B 18.2.2 - 2022 Heavy Hex Nuts and Heavy Hex Jam Nuts [Table 11]

Screw Thread		1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8
d		0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750
PP	UNC	20	18	16	14	13	12	11	10	9	8	7	7	6
	UNF	28	24	24	20	20	18	18	16	14	12	12	12	12
	8-UN	-	-	-	-	-	-	-	-	-	-	8	8	8
s	Nominal Size	1/2	9/16	11/16	3/4	7/8	15/16	1-1/16	1-1/4	1-7/16	1-5/8	1-13/16	2	2-3/16
	min	0.488	0.546	0.669	0.728	0.850	0.909	1.031	1.212	1.394	1.575	1.756	1.938	2.119
	max	0.500	0.562	0.688	0.750	0.875	0.938	1.062	1.250	1.438	1.625	1.812	2.000	2.188
e	min	0.556	0.622	0.763	0.830	0.969	1.037	1.175	1.382	1.589	1.796	2.002	2.209	2.416
e	max	0.577	0.650	0.794	0.866	1.010	1.083	1.227	1.443	1.660	1.876	2.093	2.309	2.526
m	Nominal Size	15/64	19/64	23/64	27/64	31/64	35/64	39/64	47/64	55/64	63/64	1-7/64	1-7/32	1-11/32
	min	0.218	0.280	0.341	0.403	0.464	0.526	0.587	0.710	0.833	0.956	1.079	1.187	1.310
	max	0.250	0.314	0.377	0.441	0.504	0.568	0.631	0.758	0.885	1.012	1.139	1.251	1.378
m1	Nominal Size	11/64	13/64	15/64	17/64	19/64	21/64	23/64	27/64	31/64	35/64	39/64	23/32	25/32
	min	0.156	0.186	0.216	0.247	0.277	0.307	0.337	0.398	0.458	0.519	0.579	0.687	0.747
	max	0.188	0.220	0.252	0.285	0.317	0.349	0.381	0.446	0.510	0.575	0.639	0.751	0.815
Screw Thread		1-1/2	1-5/8	1-3/4	1-7/8	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4

d		1.5000	1.6250	1.7500	1.8750	2	2.2500	2.5000	2.7500	3.0000	3.2500	3.5000	3.7500	4.0000
PP	UNC	6	-	5	-	4-1/2	4-1/2	4	4	4	4	4	4	4
	UNF	12	-	-	-	-	-	-	-	-	-	-	-	-
	8-UN	8	8	8	8	8	8	8	8	8	8	8	8	8
s	Nominal Size	2-3/8	2-9/16	2-3/4	2-15/16	3-1/8	3-1/2	3-7/8	4-1/4	4-5/8	5	5/3-8	5-3/4	6-1/8
	min	2.300	2.481	2.662	2.844	3.025	3.388	3.750	4.112	4.475	4.838	5.200	5.562	5.925
	max	2.375	2.562	2.750	2.938	3.125	3.500	3.875	4.250	4.625	5.000	5.375	5.750	6.125
e	min	2.622	2.828	3.035	3.242	3.449	3.862	4.275	4.688	5.102	5.515	5.928	6.341	6.755
e	max	2.742	2.959	3.175	3.392	3.608	4.041	4.474	4.907	5.340	5.774	6.207	6.640	7.073
m	Nominal Size	1-15/32	1-19/32	1-23/32	1-27/32	1-31/32	2-13/64	2-29/64	2-45/64	2-61/64	3-3/16	3-7/16	3-11/16	3-15/16
	min	1.433	1.556	1.679	1.802	1.925	2.155	2.401	2.647	2.893	3.124	3.370	3.616	3.862
	max	1.505	1.632	1.759	1.886	2.013	2.251	2.505	2.759	3.013	3.252	3.506	3.760	4.014
m1	Nominal Size	27/32	29/32	31/32	1-1/32	1-3/32	1-13/64	1-29/64	1-37/64	1-45/64	1-13/16	1-15/16	2-1/16	2-3/16
	min	0.808	0.868	0.929	0.989	1.050	1.155	1.401	1.522	1.643	1.748	1.870	1.990	2.112
	max	0.880	0.944	1.009	1.073	1.138	1.251	1.505	1.634	1.763	1.876	2.006	2.134	2.264

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