A-A-1352A
3.2 Dimensions and Sizes.
|
Wrench Opening (Distance Across Flats) |
Width of Head (Maximum) |
Thickness of Head (Maximum) |
Overall Length (Minimum) |
Test Load (Minimum) |
|
Inches |
Inches |
Inches |
Inches |
Inches |
|
1 |
2-17/32 |
1/4 |
12-1/4 |
1,750 |
|
1-1/16 |
2-1 7/32 |
1/4 |
12-1/4 |
1,750 |
|
1-1/8 |
2-1 7/32 |
1/4 |
12-1/4 |
1,750 |
|
1-3/16 |
2-17/32 |
1/4 |
12-1/4 |
1,750 |
|
1-1/4 |
2-17/32 |
1/4 |
12-1/4 |
1,750 |
|
1-3/8 |
2-17/32 |
1/4 |
12-1/4 |
1,750 |
|
1-7/16 |
2-29/32 |
9/32 |
12-1/4 |
1,750 |
|
1-1/2 |
2-29/32 |
9/32 |
12-1/4 |
2,000 |
|
1-9/16 |
2-29/32 |
9/32 |
12-1/4 |
2,000 |
|
1-5/8 |
2-29/32 |
9/32 |
12-1/4 |
2,000 |
|
1-11/16 |
2-29/32 |
9/32 |
12-1/4 |
2,000 |
|
1-3/4 |
3-15/32 |
5/16 |
12-1/4 |
2,500 |
|
1-13/16 |
3-15/32 |
5/16 |
12-1/4 |
2,500 |
|
1-7/8 |
3-15/32 |
5/16 |
12-1/4 |
2,500 |
|
2 |
3-15/32 |
5/16 |
12-1/4 |
2,500 |
|
2-1/8 |
3-15/32 |
5/16 |
12-1/4 |
2,500 |
|
2-3/16 |
3-15/32 |
5/16 |
12-1/4 |
2,500 |
3.3 Materials. The materials used in the manufacturing of the wrenches shall be such as to produce wrenches conforming to the physical requirements hereinafter described.
3.4 Marking. Each wrench shall be marked on one of the faces or on the handle as close to each head as is practicable in a plain and permanent manner. In addition to size markings, each wrench shall be marked in a plain and permanent manner with the manufacturer’s name or trademark of such known character that the source of manufacture may be readily determined.
3.5 Hardness. Wrenches shall be treated to a Rockwell C hardness not less that 38 nor more than 55 when tested per ASTM-E- 18.
3.6 Proof Torque. When tested as specified in ASME-B107.6, the wrenches shall withstand the proof torque specified in Table 1 without failure or permanent deformation that might affect the durability or serviceability of the wrenches.
3.7 Wrench Opening. The nut and bolt head-engaging surfaces of the open end wrench shall be finished in a smooth and well-defined manner. The tips (working ends) of all open end wrenches shall also be chamfered or rounded to eliminate burrs. Wrench opening tolerances shall be such as to insure acceptance when gaged with gages conforming to ASME B 107. 17M.
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