ASME B18.2.3.2M:2005 pdf free download

ASME B18.2.3.2M:2005 pdf free download.Metric Formed Hex Screws.
6,6.5 Position of Body-to’Thread. For products with cut threisiLs, at maximum material condition, the axis of the screw body, P. (derived median line), over a length equal to the nominal screw diameter from the last scratch of thread, shall be within the positional tolerance zone diameter specified in Table 2 with respeci to the axis of the thread, over,, length equal to the nominal screw diameter from the last complete thread. A gage and gaging procedure for checking body position is given in Nonmandatory Appendix B.
6.7 Screw Threads
6.7.1 Thread Series and Tolerance Class. Screw threads shall be general purpose metric screw threads with toleranceClasshgconfonning to ASME 111PM. unless otherwise specified by the purchaser. For screws with additive finish, size limits for tolerance Class óg apply prior to coating, and the thread after coating is subject to acceptance using a basic (tolerance position I,) size GO thread gage and tolerance Class 6g thread gage for either minimum materIal 10 or NOT GO.
6.72 Thread Gaging. Unless otherwise specified. dimensional acceptability of screw threads shall be based on System 21 of ASMF: Bl.3M
63 Materials and Mechanical Properties
6,8,1 Steel. Liniess othenv& specified, steel screws shall conform to the requirements of ASTM F 5bSM.
6.82 Corrosion-Resistant Steels. Unless otherwise spec-ifIL-d, screws made of corrosion-n’si.stant steels shall conform to the requirements of ASTM F 738M.
63.3 Nonferrous Metals. Unless otherwise specified, nonferrous screws shall conform to the requirements of ASTM F 4t.SM.
6.9 Finish
Unless otherwise specified, screws shall be supplied with a natural (as processed) finish. unplated or uncoated, in a clean condition and lightly oiled.
6.10 IdentifIcation Symbols
Identification marking symbols shall be on top of the screw heads and shall be raised or indented at the manufacturer’s option, unless otherwise specified at the time of ordering. Marking shall he legible to the unaided eye with the cception of ConTctive Icnscs WhCTI raLed. markings d’aIt protect not leas than 0.1 mm forM 14 and smaller screws, and 0.3 mm for M16 and larger screws above the surface of the head, and the total head height head plus markings) shall not exceed thy eduied max imum head height plus 0.1 mm foe M5 and Mb screws. (1.2 mm for M and Mitt screws. 0.3 mm for M12 arid M14 screws, and 0.4 mm for MIb and larger screws. When indented, the dLpth of the marking shall not raduce the load carrying capability of the screw,
6.10.1 Propetly Class Symbols. Each screw shall he marised in accordance with the applicable specification for its chemical and mechanical requirements.
6.10.2 Soarce Symbols. Each screw shall be marked to identity its source unaaufacturer or private label distributor).