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This paper specifies the usage of structural bolts in terms of their design, selection and application, in accordance with the the American Institute of Steel Construction (AISC) Ninth Edition. " Manual of Steel Construction ". 2. GENERAL GUIDELINES 2.1 All bolts used shall have identification or grade marks as specified by the American Society for Testing and Materials (ASTM), the Society of Automotive Engineers (SAE), or the International Organization for Standardization (ISO), as identified by Industrial Fasteners Institute (IFI) guidelines. See the attached table "Properties of Steel Fasteners" for common fasteners. 2.2 All structural bolting shall conform to the standard specifications as specified in AISC" Manual of Steel Construction ". 2.3 Bolts not having identification shall not be used, unless material verification has been obtained. 2.4 Preventative steps to alleviate corrosion shall be taken when bolts are exposed to corrosive environments. 2.5 All bolts subjected to a fatigue loading shall be designed for such loads. 2.6 Washers and nuts shall be of the same material as the bolting material, unless compatibility of different materials can be demonstrated.

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