GB/T 1229-1991
High strength large hexagon nuts for steel structures (English Version)

Standard No.

GB/T 1229-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2006-11

Replace By

GB/T 1229-2006

Latest

GB/T 1229-2006

Scope

This standard stipulates the type, size, technical conditions and marks of high-strength large hexagonal nuts with thread specifications of M12 ~ M30. This standard applies to friction-type high-strength bolt connections for steel structures used in conjunction with GB 1228 "High-strength Large Hexagon Head Bolts for Steel Structures".

GB/T 1229-1991 history

• 2006 GB/T 1229-2006 High strength large hexagon nuts for steel structures
• 1991 GB/T 1229-1991 High strength large hexagon nuts for steel structures