This product is regulated by the following standards:

ASME B18.2.2 TABLE 4 ASME B18.2.2 TABLE 1-2 ASME B18.2.2 TABLE 1-1 ASME B18.2.2 TABLE 10 ASME B18.2.2 TABLE 3 ASME B18.2.2 TABLE 6 ASME B18.2.2 TABLE 9

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Hexagon nuts, inch series

This product is regulated by the following standards:

Standard ASME B18.2.2 TABLE 4

Hexagon nuts and Hexagon Jam nuts

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 TABLE 4 Publication date : 2010
Nominal size or Bsic major dia. of the Thread	Nr. of threads x inch		G min	G max	F min	F max	H min	H max	H1 min	H1 max
Nominal size or Bsic major dia. of the Thread	UNC	UNF	G min	G max	F min	F max	H min	H max	H1 min	H1 max
1/4	20	28	0.488	0.505	0.428	0.438	0.212	0.226	0.150	0.163
5/16	18	24	0.557	0.577	0.489	0.5	0.258	0.273	0.180	0.195
3/8	16	24	0.628	0.650	0.551	0.562	0.320	0.337	0.210	0.227
7/16	14	20	0.698	0.794	0.675	0.625	0.365	0.385	0.240	0.260
1/2	13	20	0.840	0.866	0.736	0.75	0.427	0.448	0.302	0.323
9/16	12	18	0.910	1.010	0.861	0.812	0.473	0.496	0.301	0.324
5/8	11	18	1.051	1.083	0.922	0.937	0.535	0.559	0.363	0.387
3/4	10	16	1.254	1.299	1.088	1.125	0.617	0.665	0.398	0.446
7/8	9	14	1.465	1.516	1.269	1.313	0.724	0.776	0.458	0.510
1	8	12	1.675	1.732	1.450	1.50	0.831	0.887	0.519	0.575
1-1/8	7	12	1.859	1.949	1.631	1.625	0.939	0.999	0.579	0.639
1-1/4	7	12	2.066	2.165	1.812	1.875	1.030	1.094	0.687	0.751
1-3/8	6	12	2.273	2.382	1.994	2	1.138	1.206	0.747	0.815
1-1/2	6	12	2.480	2.598	2.175	2.25	1.245	1.317	0.808	0.880
1-5/8	-	-	2.686	2.805	2.35	2.438	1.364	1.416	0.868	0.944
1-3/4	5	-	2.893	3.031	2.538	2.625	1.460	1.540	0.929	1.009
1-7/8	-	-	3.099	3.247	2.722	2.813	1.567	1.651	0.989	1.073
2	4.5	-	3.306	3.464	2.900	3	1.675	1.763	1.050	1.138
2-1/4	4.5	-	3.719	3.897	3.263	3.375	1.890	1.986	1.155	1.267
2-1/2	4	-	4.133	4.330	3.625	3.75	2.105	2.209	1.401	1.427
2-3/4	4	-	4.546	4.763	3.988	4.125	2.319	2.431	1.522	1.556
3	4	-	4.959	5.196	4.350	4.5	2.534	2.654	1.643	1.685
3-1/4	4	-	5.373	5.629	4.713	4.875	2.749	2.877	1.748	1.814
3-1/2	4	-	5.786	6.062	5.075	5.25	2.964	3.100	1.870	1.943
3-374	4	-	6.199	6.495	5.438	5.625	3.178	3.322	1.990	2.072
4	4	-	6.612	6.928	5.800	6	3.393	3.545	2.112	2.201

Standard ASME B18.2.2 TABLE 1-2

Small pattern hex machine screw nuts

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 Table 1-2 Publication date: 2010
d Thread size	G1 min	G1 max	F basic	H min	H max
0 (0.060)	0.134	0.140	0.125	0.043	0.050
1 (0.073)	0.134	0.140	0.125	0.043	0.050
2 (0.086)	0.171	0.180	0.156	0.057	0.066
3 (0.099)	0.171	0.180	0.156	0.057	0.625
4 (0.112)	0.205	0.217	0.188	0.087	0.098
5 (0.125)	0.275	0.289	0.25	0.102	0.114
6 (0.138)	0.344	0.361	0.312	0.102	0.114
8 (0.164)	0.378	0.397	0.344	0.117	0.13
10 (0.190)	0.413	0.433	0.375	0.117	0.13

Standard ASME B18.2.2 TABLE 1-1

Square and hex machine screw nuts

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 table 1-1 Publication date: 2010
Nominal size or basic thread diameter		UNC (nr of threads x inch)	UNF (nr of threads x inch)	F basic	G min	G max	H min	H max	G1 min	G1 max
inch	mm	UNC (nr of threads x inch)	UNF (nr of threads x inch)	F basic	G min	G max	H min	H max	G1 min	G1 max
0 (0.060)	1.52	-	80	0.156	0.206	0.221	0.043	0.050	0.171	0.180
1 (0.073)	1.85	64	72	0.156	0.206	0.221	0.043	0.050	0.171	0.180
2 (0.086)	2.18	56	64	0.188	0.247	0.265	0.057	0.066	0.205	0.217
3 (0.099)	2.51	48	56	0.188	0.247	0.265	0.057	0.066	0.205	0.217
4 (0.112)	2.84	40	48	0.25	0.331	0.354	0.087	0.098	0.275	0.289
5 (0.125)	3.18	40	44	0.312	0.415	0.442	0.102	0.114	0.344	0.361
6 (0.138)	3.51	32	40	0.312	0.415	0.442	0.102	0.114	0.344	0.361
8 (0.164)	4.17	32	36	0.344	0.456	0.486	0.117	0.130	0.378	0.397
10 (0.190)	4.83	24	32	0.375	0.497	0.53	0.117	0.130	0.413	0.433
12 (0.216)	5.49	24	28	0.438	0.581	0.619	0.148	0.161	0.482	0.505
1/4 (0.250)	6.35	20	28	0.438	0.581	0.619	0.178	0.193	0.482	0.505
5/16 (0.312)	7.94	18	24	0.562	0.748	0.795	0.208	0.225	0.621	0.65
3/8 (0.375)	9.53	16	24	0.625	0.833	0.884	0.239	0.257	0.692	0.722

Standard ASME B18.2.2 TABLE 10

Heavy Hex Nuts and heavy Hex Jam nuts

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 - Table 10 Publication date: 2010
d Thread size	Nr. of threads x inch		G min	G max	F basic max	F min	H min	H max	H1 min	H1 max
d Thread size	UNC	UNF	G min	G max	F basic max	F min	H min	H max	H1 min	H1 max
1/4	20	28	0.556	0.577	0.500	0.488	0.218	0.250	0.156	0.188
5/16	18	24	0.622	0.650	0.562	0.546	0.280	0.314	0.186	0.220
3/8	16	24	0.763	0.794	0.688	0.669	0.341	0.377	0.216	0.252
7/16	14	20	0.83	0.866	0.75	0.728	0.403	0.441	0.247	0.285
1/2	13	20	0.969	1.010	0.875	0.850	0.464	0.504	0.277	0.317
9/16	12	18	1.037	1.083	0.938	0.909	0.526	0.568	0.307	0.349
5/8	11	18	1.175	1.227	1.063	1.031	0.587	0.631	0.337	0.381
3/4	10	16	1.383	1.443	1.25	1.212	0.710	0.758	0.398	0.446
7/8	9	14	1.589	1.660	1.438	1.394	0.833	0.885	0.458	0.510
1	8	12	1.769	1.876	1.625	1.575	0.956	1.012	0.519	0.575
1-1/8	7	12	2.002	2.093	1.813	1.756	1.079	1.139	0.579	0.639
1-1/4	7	12	2.209	2.309	2	1.938	1.187	1.251	0.687	0.751
1-3/8	6	12	2.416	2.526	2.188	2.119	1.310	1.378	0.747	0.815
1-1/2	6	12	2.622	2.742	2.375	2.300	1.433	1.505	0.808	0.880
1-5/8	-	-	2.829	2.959	2.563	2.481	1.556	1.632	0.868	0.944
1-3/4	5	-	3.035	3.175	2.75	2.662	1.679	1.759	0.929	1.009
1-7/8	-	-	3.242	3.392	2.938	2.844	1.802	1.886	0.989	1.073
2	4.5	-	3.449	3.608	3.125	3.025	1.925	2.013	1.050	1.138
2-1/4	4.5	-	3.862	4.041	3.5	3.388	2.155	2.251	1.155	1.251
2-1/2	4	-	4.275	4.474	3.875	3.750	2.401	2.505	1.401	1.505
2-3/4	4	-	4.688	4.907	4.25	4.112	2.647	2.759	1.522	1.634
3	4	-	5.102	5.340	4.625	4.4475	2.893	3.013	1.643	1.763
3-1/4	4	-	5.515	5.774	5	4.838	3.124	3.252	1.748	1.876
3-1/2	4	-	5.928	6.207	5.375	5.200	3.370	3.506	1.870	2.006
3-3/4	4	-	6.341	6.640	5.75	5.562	3.616	3.760	1.990	2.134
4	4	-	6.755	7.073	6.125	5.925	3.862	4.014	2.112	2.264

Standard ASME B18.2.2 TABLE 3

Hex Flat Nuts and Hex Flat Jam Nuts

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 Table 3 Publication date: 2010
Nominal size or basic major thread diameter	G min	G max	F basic	H min	H max	H1 min	H1 max
1-1/8 (1.1250)	1.859	1.949	1.688	0.970	1.030	0.595	0.655
1-1/4 (1.2500)	2.066	2.165	1.875	1.062	1.126	0.718	0.782
1-3/8 (1.3750)	2.273	2.382	2.062	1.169	1.237	0.778	0.846
1-1/2 (1.5000)	2.480	2.598	2.250	1.276	1.348	0.839	0.911

Standard ASME B18.2.2 TABLE 6

Hex thick nuts

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 TABLE 6 Publication date : 2010
Nominal size or Bsic major dia. of the Thread	G min	G max	F min	F max	H min	H max
1/4	0.488	0.505	0.428	0.438	0.274	0.288
5/16	0.557	0.577	0.489	0.500	0.320	0.336
3/8	0.628	0.650	0.551	0.562	0.398	0.415
7/16	0.698	0.794	0.675	0.688	0.444	0.463
1/2	0.840	0.866	0.736	0.750	0.552	0.573
9/16	0.910	1.010	0.861	0.875	0.598	0.621
5/8	1.051	1.083	0.922	0.938	0.706	0.731
3/4	1.254	1.299	1.088	1.125	0.798	0.827
7/8	1.465	1.516	1.269	1.312	0.890	0.922
1	1.675	1.732	1.450	1.500	0.982	1.018
1-1/8	1.859	1.949	1.631	1.625	1.136	1.176
1-1/4	2.066	2.165	1.812	1.875	1.228	1.272
1-3/8	2.273	2.382	1.994	2.062	1.351	1.399
1-1/2	2.480	2.598	2.175	2.250	1.474	1.526

Standard ASME B18.2.2 TABLE 9

Heavy hex flat nuts and heavy hex flat jam nuts.

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 Table 9 Publication date : 2010
Nominal size or Bsic major dia. of the Thread	G min	G max	F min	F max	H min	H max	H1 min	H1 max
1-1/8	2.002	2.093	1.756	1.812	1.079	1.155	0.579	0.655
1-1/4	2.209	2.309	1.938	2.000	1.187	1.282	0.687	0.782
1-3/8	2.416	2.526	2.119	2.188	1.310	1.409	0.747	0.846
1-1/2	2.622	2.742	2.300	2.375	1.433	1.536	0.806	0.911
1-3/4	3.035	3.175	2.662	2.750	1.679	1.790	0.929	1.040
2	3.449	3.608	3.025	3.125	1.925	2.044	1.050	1.169
2-1/4	3.862	4.041	3.388	3.500	2.155	2.298	1.155	1.298
2-1/2	4.275	4.474	3.750	3.875	2.401	2.552	1.401	1.552
2-3/4	4.688	4.907	4.112	4.250	2.647	2.806	1.522	1.681
3	5.102	5.340	4.475	4.625	2.893	3.060	1.643	1.810
3-1/4	5.515	5.774	4.838	5.000	3.124	3.314	1.748	1.939
3-1/2	5.928	6.207	5.200	5.375	3.370	3.568	1.870	2.068
3-3/4	6.341	6.640	5.562	5.750	3.616	3.822	1.990	2.197
4	6.755	7.073	5.925	6.125	3.862	4.076	2.112	2.362

Hexagon nuts, inch series

Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 2010 table 4 - Hex Nuts, Hex jam nuts
d Thread size	Nr. of threads x inch		G min	F basic	H basic	H1 basic
d Thread size	UNC	UNF	G min	F basic	H basic	H1 basic
1/4	20	28	0.488	0.438	0.219	0.1565
5/16	18	24	0.557	0.5	0.266	0.1875
3/8	16	24	0.628	0.562	0.328	0.219
7/16	14	20	0.698	0.625	0.375	0.25
1/2	13	20	0.840	0.75	0.4375	0.3125
9/16	12	18	0.910	0.812	0.484	0.3125
5/8	11	18	1.051	0.937	0.547	0.375
3/4	10	16	1.254	1.125	0.641	0.422
7/8	9	14	1.465	1.313	0.75	0.484
1	8	12	1.675	1.50	0.859	0.547
1-1/8	7	12	1.859	1.625	0.969	0.609
1-1/4	7	12	2.066	1.875	1.062	0.719
1-3/8	6	12	2.273	2	1.172	0.781
1-1/2	6	12	2.480	2.25	1.281	0.844
1-5/8	-	-	2.686	2.438	1.39	0.906
1-3/4	5	-	2.893	2.625	1.5	0.969
1-7/8	-	-	3.099	2.813	1.609	1.031
2	4.5	-	3.306	3	1.719	1.094
2-1/4	4.5	-	3.719	3.375	1.938	1.211
2-1/2	4	-	4.133	3.75	2.157	1.414
2-3/4	4	-	4.546	4.125	2.375	1.539
3	4	-	4.959	4.5	2.594	1.664
3-1/4	4	-	5.373	4.875	2.813	1.781
3-1/2	4	-	5.786	5.25	3.032	1.9065
3-374	4	-	6.199	5.625	3.250	2.031
4	4	-	6.612	6	3.469	2.1565


Dimensions in inches (1 inch=25.4 mm) source ASME B18.2.2 -2010- table 10 Heavy Hex Nuts. Heavy Hex Jam Nuts
d Thread size	Nr. of threads x inch		G min	F basic	H basic	H1 basic
d Thread size	UNC	UNF	G min	F basic	H basic	H1 basic
1/4	20	28	0.556	0.5	0.234	0.172
5/16	18	24	0.622	0.562	0.297	0.203
3/8	16	24	0.763	0.688	0.359	0.234
7/16	14	20	0.83	0.75	0.422	0.266
1/2	13	20	0.969	0.875	0.484	0.297
9/16	12	18	1.037	0.938	0.547	0.328
5/8	11	18	1.175	1.063	0.609	0.359
3/4	10	16	1.383	1.25	0.734	0.422
7/8	9	14	1.589	1.438	0.859	0.484
1	8	12	1.769	1.625	0.984	0.547
1-1/8	7	12	2.002	1.813	1.109	0.609
1-1/4	7	12	2.209	2	1.219	0.719
1-3/8	6	12	2.416	2.188	1.342	0.781
1-1/2	6	12	2.622	2.375	1.469	0.844
1-5/8	-	-	2.829	2.563	1.594	0.906
1-3/4	5	-	3.035	2.75	1.719	0.969
1-7/8	-	-	3.242	2.938	1.844	1.031
2	4.5	-	3.449	3.125	1.969	1.09
2-1/4	4.5	-	3.862	3.5	2.203	1.203
2-1/2	4	-	4.275	3.875	2.453	1.453
2-3/4	4	-	4.688	4.25	2.703	1.578
3	4	-	5.102	4.625	2.953	1.703
3-1/4	4	-	5.515	5	3.188	1.813
3-1/2	4	-	5.928	5.375	3.438	1.938
3-3/4	4	-	6.341	5.75	3.688	1.063
4	4	-	6.755	6.125	3.938	1.188

Full list of Suppliers of Hexagon nuts, inch series

Italy|Distributor

Buora d.p.u. S.r.l.

Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.

The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.

Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.

Germany|Distributor

Pfitzer Verbindungstechnik Gmbh

Distributor of inch sized fasteners, oil and gas fasteners and turned special screws

China|Distributor

...

Manufacturer of hex nuts and heavy hex nuts, both in metric and inch sizes

UK|Distributor

C...

Manufacturer and distributor of standard and special nuts, both in metric and imperial sizes

Taiwan|Distributor

C...

Manufacturer of hexagon nuts, weld nuts, square nuts and wing nuts.

Material: Stainless Steel, Carbon Steel, Brass C2700/C2600 Silicon Bronze 651

Size: M1.6-M24, #0-1"

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C...

Leader in the forged steel structural hardware industry: stud bolts, nuts, eye bolts, turnbuckles

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C...

Distributor and importer of nylon insert and all metal locknuts

UK|Distributor

D...

Distributor of nuts: hexagonal, self-locking, dome, welding and with flange

Italy|Distributor

D...

Manufacturer of nuts: flanges, lock, welding, with washer

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D...

Manufacturer and importer specialized in special, structural and automotive nuts

Italy|Distributor

F...

We offer logistics and inventory management and integrated supply chain management services covering a wide market of OEM fasteners (KanBan), MRO and Personal Protective Equipment (Vending Machine).

Germany|Distributor