Allen Hex Key Hexagon Keys Inch Series Tools

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Allen Hexagon, Hex Key, Hexagon Keys Inch Series Tools

Inch Series Hexagon Keys

Inch Series Hexagon Keys - Applicable Specifications: ASME B18.3.
Hardness: R_C45-53.

Nominal Key Size	F Hex Width Across Flats		C Hex Width Across Corners		S Length Of Short Arm		L Length of Long Arm Short Series		L Length of Long Arm Long Series		R Radius of Bend Min.	K Chamfer Max.
Nominal Key Size	Max.	Min.	Max. .	Min	Max.	Min.	Max.	Min.	Max.	Min.	R Radius of Bend Min.	K Chamfer Max.
0.028	0.0280	0.0275	0.0314	0.0300	0.312	0.125	1.312	1.125	2.688	2.500	0.062	0.003
0.035	0.0350	0.0345	0.0393	0.0378	0.438	0.250	1.312	1.125	2.766	2.578	0.062	0.004
0.050	0.0500	0.0490	0.0560	0.0540	0.625	0.438	1.750	1.562	2.938	2.750	0.062	0.006
1/16	0.0625	0.0615	0.0701	0.0680	0.656	0.469	1.844	1.656	3.094	2.906	0.062	0.008
5/64	0.0781	0.0771	0.0880	0.0859	0.703	0.516	1.969	1.781	3.281	3.094	0.078	0.008
3/32	0.0937	0.0927	0.1058	0.1035	0.750	0.562	2.094	1.906	3.469	3.281	0.094	0.009
7/64	0.1094	0.1079	0.1238	0.1210	0.797	0.609	2.219	2.031	3.656	3.469	0.109	0.014
1/8	0.1250	0.1235	0.1418	0.1390	0.844	0.656	2.344	2.156	3.844	3.656	0.125	0.015
9/64	0.1406	0.1391	0.1593	0.1566	0.891	0.703	2.469	2.281	4.031	3.844	0.141	0.016
5/32	0.1562	0.1547	0.1774	0.1745	0.938	0.750	2.594	2.406	4.219	4.031	0.156	0.016
3/16	0.1875	0.1860	0.2135	0.2105	1.031	0.844	2.844	2.656	4.594	4.406	0.188	0.022
7/32	0.2187	0.2172	0.2490	0.2460	1.125	0.938	3.094	2.906	4.969	4.781	0.219	0.024
1/4	0.2500	0.2485	0.2845	0.2815	1.219	1.031	3.344	3.156	5.344	5.156	0.250	0.030
5/16	0.3125	0.3110	0.3570	0.3531	1.344	1.156	3.844	3.656	6.094	5.906	0.312	0.032
3/8	0.3750	0.3735	0.4300	0.4238	1.469	1.281	4.344	4.156	6.844	6.656	0.375	0.044
7/16	0.4375	0.4355	0.5018	0.4944	1.594	1.406	4.844	4.656	7.594	7.406	0.438	0.047
1/2	0.5000	0.4975	0.5735	0.5650	1.719	1.531	5.344	5.156	8.344	8.156	0.500	0.050
9/16	0.5625	0.5600	0.6452	0.6356	1.844	1.656	5.844	5.656	9.094	8.906	0.562	0.053
5/8	0.6250	0.6225	0.7169	0.7080	1.969	1.781	6.344	6.156	9.844	9.656	0.625	0.055
3/4	0.7500	0.7470	0.8603	0.8512	2.219	2.031	7.344	7.156	11.344	11.156	0.750	0.070
7/8	0.8750	0.8720	1.0036	0.9931	2.469	2.281	8.344	8.156	12.844	12.656	0.875	0.076
1	1.0000	0.9970	1.1470	1.1350	2.719	2.531	9.344	9.156	14.344	14.156	1.000	0.081
1 1/4	1.2500	1.2430	---	---	3.250	2.750	11.500	11.000	---	---	1.250	0.092
1 1/2	1.5000	1.4930	---	---	3.750	3.250	13.500	13.000	---	---	1.500	0.104

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