Wrench Size | Hexagon Width Across Flats | Hexagon Width Across Corners | Length of Short Arm | Length of Long Arm (Short Series) | Radius of Bend | Chamfer | Torsional Shear - Ave. | Torque Rating | ||||
Max | Min | Max | Min | Max | Min | Max | Min | Min | Max | (Inch-Pounds) | (Inch Pounds) | |
5/64 (0.078) | 0.0781 | 0.0771 | 0.0880 | 0.0859 | 0.703 | 0.516 | 1.969 | 1.781 | 0.078 | 0.008 | 25.0 | 19.40 |
SEE NOTES | 2 | 1 |
NOTES: |
(1) Ends | (5) Plating |
(2) Rounding of Corner | (6) Product Applicability |
(3) Material | (7) Designation |
(4) For sizes above 1" |
Reprinted from ASME/ANSI B18.3 by permission of The American Society of Mechanical Engineers. All rights reserved. For a full copy of the standards, contact the ASME at http://www.asme.org/codes/.