A490M-04a - Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints [Metric]
Description:
This specification covers two types of quenched and tempered alloy steel, metric heavy hex structural bolts having a tensile strength of 1040 to 1210
MPa.
The bolts are furnished in nominal bolt diameters M12 to M36, inclusive. They are designated by type denoting chemical composition as
follows:
Type 1 Medium carbon alloy steel
Type 2 Withdrawn in 2002
Type 3 Weathering steel
Category: ASTM International Standards Specifications
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