ASME B107.2 pdf download

ASME B107.2 pdf download SOCKETWRENCHES, EXTENSIONS, ADAPTORS, AND UNIVERSALJOINTS, POWERDRIVE(IMPACT) (INCH SERIES)
4.4 Markings Sockets and attachments shall be marked in a plain and permanent manner with the manufacturer’s name or with a trademark of such known character that the source of manufacture and country of origin may be readily determined. In addition, sockets shall be marked in a plain and permanent manner with the nominal size of the wrench opening (distance across flats) for the nut, bolt, or screw end.
4.5 Proof Torque When tested as specified, sockets and extensions shall withstand the proof torque specified in the applicable tables without failure or permanent deformation (set) that might affect the durability or serviceability of the wrenches.
4.6 Hardness Sockets and attachments shall be hardened and shall have a hardness value for the various sizes within the range shown in the table below except that the maximum hardness for Type I Class 4 and 5 shall be 52 HRC.
4.7 Wrench Opening Wrench opening tolerances shall be such as to ensure acceptance when used with gages conforming to ASME B107.17M.
4.8 Finish
4.8.1 Surface. All external surfaces shall be free from pits, nodules, burrs, cracks, and other detrimental defects affecting serviceability.
4.8.2 Coatings. The coatings shall be adherent, smooth, continuous, and free from uncoated areas. Sockets and attachments shall have one of the following coatings.
4.8.2.1 Phosphate Coating. The coating shall consist of a chemically produced phosphate coating followed with a coating of a rust preventative.
4.8.2.2 Oxide Coating. The coating shall consist of a chemically produced oxide coating followed with a coating of a rust preventative.
4.9 Bolt Clearance Hole A bolt clearance hole shall be provided in all sockets except Type III, universal sockets detailed in para.
4.9.1. The minimum depth of the bolt clearance hole shall be 1.5 times the minimum depth of the nut opening as set forth in the respective tables for regular length sockets and not less than 55% of the overall length for long length and extra long length sockets as measured from the face of the wrench end. The size of the bolt clearance hole shall be in accordance with that of the applicable size socket specified in the respective tables for each class and style.
4.9.1 A bolt clearance hole may be provided in Type III, Class 1 and 2, universal sockets. The diameter of the hole if provided shall be in accordance with the applicable size socket as specified in Tables 14 and 15.
4.10 Through Hole A through hole having a minimum diameter equal to 50% of the square drive size or equal to the bolt clearance hole diameter, whichever is smaller, shall be provided.