GB/T 1228-2006: High strength bolts with large hexagon head for steel structures

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Scope

This Standard specifies the types and dimensions, specifications and designation of
high strength bolts with large hexagon head for steel structures and thread sizes M12
~ M30.
This Standard applies to the friction-type high strength bolted connections of railroad
and highway bridges, boiler steel structures, industrial factory buildings, high-rise civil
buildings, hoisting machinery and other steel structures.

Basic Data

Standard ID	GB/T 1228-2006 (GB/T1228-2006)
Description (Translated English)	High strength bolts with large hexagon head for steel structures
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J13
Classification of International Standard	21.060.10
Word Count Estimation	8,850
Date of Issue	2006-03-27
Date of Implementation	2006-11-01
Older Standard (superseded by this standard)	GB/T 1228-1991
Quoted Standard	GB/T 2; GB/T 1231; GB/T 1237; GB/T 5276
Adopted Standard	ISO 7412-1984, NEQ
Regulation (derived from)	National Standard Approval Announcement 2006 No.5 (Total No.92)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard provides specifications for the M12 ~ M30 thread high strength large hexagon head bolts type size, technical conditions and markers. This standard applies to railroad and highway bridges, boiler steel, industrial plants, tall buildings, tower mast structure, lifting machinery and other steel friction-type high strength bolt connections.