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ASTMHex bolt -StandardSpecificationforQuerchedandTemperatureSteelBoltsandStudsThisspecificationcoverschemicalandmechanicalrequirementsfortwotypesofquenchedandtemp
Hex head bolt dimensions should comply with the ASME B18.2.1 standard, with threads using the Unified Coarse Thread series (UNC) and a grade 2A accuracy. For coated fasteners, the standard allows the threaded dimensions to exceed the grade 2A limits after coating within a certain range, with specific tolerance limits varying according to the diameter and type of coating.




ASTM Hex bolt -Standard Specification for Querched and Temperature Steel Bolts and Studs
This specification covers chemical and mechanical requirements for two types of quenched and tempered steel bolts and studs,intended for use in general application with high strength requirement. ASTM Hex bolt specification includes type 1 medium carbon steel bolts and studs manufactured in diameter 1/4 inch to3 inch for imperial connections ard from M6 to M76 for metric connections;Whereas ASTM Hex bolt type2 is low carbon martensite steel bolts and studs manufactured in diameter 1/4 inch to1inch for imperial connections and M6 toM24for metric connections.Ferrobend manufactures and supplies ASTM Hex bolt Type1 & Type 2 Bolts, Studs, etc with fine precision, superior integrity along with EN 10204 Type 3.1 Certification