ASME B18.5:2008 pdf free download

ASME B18.5:2008 pdf free download.Round Head Bolts(lnch Series).
2.1.3 Underhead Fillets. All bolts having flat bearing surface type heads shall have a definite fillet at the junction of head .ind shank. The minimum radius of fillet shall be equal to one-half of the maximum values specified in the respective dimensional tables. The radius of fillet shall not exceed the values specified in the respectve dimensional tables except for bolts produced from nonferrous and corrosion-resistant materials, on which maximum fillets shall be subject to agreement between manufacturer and purchaser.
2.2 Square Neck
2.2.1 Depth of Square. The depth of square shall be measured, parallel to the axis of bolt at the midpoint of the flats of square, from the bottom of square to the bearing surface for bolts having flat bearing surface type beads, and to the intersection of flats of square with the conical bearing surface for bolts having countersunk heads.
2.2.2 Corners of Square. The corners of square neck may be rounded to the extent specified in the respective dimensional tables and need not be filled out for the total depth of 1qu.ire.
2.3 Body Diameter
2.3.1 Full Diameter Body. Unless otherwise specified, all bolts covered by this Standard, except round head square neck bolts and round head short square neck bolts, will be furnished with full diameter body of limits given in the dimensional tables.
2.3.2 Round Head Square Neck and Round Head Short Square Neck Bolt DIameter Body. Unless otherwise specified, round head square neck bolts and round head short square neck bolts shall be furnished with a body diameter having a maximum limit equal to that of the full diameter body and a minimum limit equal to the minimum pitch diameter of the thread as given in the dimensional tables.
2.3.3 Swell or Fin. A swell or fin under the head or under corners of square neck shall be permissible, provided it does not affect serviceability, nor exceed the basic bolt diameter by more than the following:
2.7 Points
Bolts need not be pointed.
2.8 Materials and Mechanical Properties
2.8.1 Steel. Unless otherwise specified,chemicaland mechanical properties of steel bolts,except stepbolts and elevator bolts, shall conform to Grade A ofASTMA 307 , and shall be stress relieved as required bythe Standard. Due to peculiarities of the head configura-tions, steel step bolts and elevator bolts are consideredconforming if the tensile strength in pounds is equal toor greater than the values indicated in the applicablematerial standard.
2.8.2Other Materials.Nonferrous materials arecovered in ASTM F 468. Corrosion-resistant steels arecovered in ASTM F 593.
2.9 ldentification Symbols
2.9.1 Grade Symbols. Each of the products includedin this Standard shall be marked in accordance withthe requirements of the applicable specification for itschenistry and mechanicai properties.
2.9.2 Source Symbols.Each of the productsincluded in this Standard shall be marked to identifythe source accepting responsibility for the conformanceof the bolt to this and other applicable specifications.