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) | |
1/2 (0.500) | 0.5000 | 0.4975 | 0.5715 | 0.5650 | 1.719 | 1.531 | 5.344 | 5.156 | 0.500 | 0.050 | 6300.0 | 5130.00 |
SEE NOTES 1 | 2 | 1 | 7 | 8 |
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/.