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1.1 This specification covers requirements of various types of quenched and tempered steel bolts in nominal thread diameters
1.1.1 Type 1 -Bolts made of medium-carbon steel.
1.1.2 Type 2 -Bolts made from what is generally described as low-carbon martensite steel.
1.1.3 Type 3 -Bolts made of steel having atmospheric corrosion resistance and weathering characteristics comparable to that of the steel covered in Specifications A588/ A588M, A242/A242M, and A709/A709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition (see 5.3). When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.
1.2 This specification provides that heavy hex structural bolts shall be furnished unless other dimensional requirements are stipulated in the purchase inquiry and order.
1.3 Unless otherwise specified, all nuts used on these bolts shall conform to the requirements of Specification A563M shall be heavy hex, and shall be of the class and surface finish for each type of bolt as follows:Bolt Type and Finish Nut Class and Finish 1 and 2, plain (noncoated) 8S or 8S3, plain 1 and 2, zinc-coated 10S, zinc-coated 3, plain 8S3, plain
1.4 Unless otherwise specified, all washers used on these bolts shall conform to the requirements of Specification F436M and shall be of a surface finish for each type of bolt as follows:Bolt Type and Finish Washer Finish 1 and 2, plain (uncoated) plain (uncoated) 1 and 2, zinc-coated 3, plain weathering steel, plain
1.5 Zinc-coated bolts and nuts shall be shipped in the same container.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A563M Specification for Carbon and Alloy Steel Nuts (Metric)
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F436M Specification for Hardened Steel Washers (Metric)
F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets (Metric)
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F959M Specification for Compressible-Washer-Type Direct Tension Indicators for Use With Structural Fasteners (Metric)
F1136M Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners (Metric)
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1789 Terminology for F16 Mechanical Fasteners
G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels
ASME StandardsB 1.13M Metric Screw Threads B 18.18.3M Inspection and Quality Assurance for Special Purpose Fasteners B 22.214.171.124M Metric Heavy Hex Structural Bolts B 18.24 Part Identifying Number (PIN) Code System Standard for B18 Fastener Products
ICS Number Code 21.060.10 (Bolts, screws, studs)
UNSPSC Code 31161614(Structural bolts )
ASTM A325M-00, Standard Specification for High-Strength Bolts for Structural Steel Joints [Metric], ASTM International, West Conshohocken, PA, 2000, www.astm.orgBack to Top