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Chinese National Standard Category: Fastener

English Title: Specifications of high strength bolts with large hexagon head, large hexagon nuts,plain washers for steel structures
Chinese Title: 钢结构用高强度大六角头螺栓,大六角螺母,垫圈技术条件
Standard No.: GB/T 1231-1991
Category No.: J13
Issued by: CSBTS
Issued on: 1991-04-22
Implemented on: 1992-1-1
Status: superseded
Superseded by:GB/T 1231-2006 Specifications of High Strength Bolts with Large Hexagon Head, Lar
GB 1231-2006
Superseded on:2006-11-1
Abolished on:2006-11-01
Superseding:GB 1231-1984
Word Count:4000 words
Similar Standards: GB 109-1986   T/CI 150-2023   GB/T 929-1988   GB 873-1986   GB/T 80-2000   DB32/T 4275-2022   GB/T 943-1988   GB/T 1007-1976   GB 872-1986   GB/T 79-2000   GB/T 43232-2023   GB/T 43151-2023   GB/T 5267.1-2023   GB/T 16824.1-2023   GB/T 15856.5-2023   GB/T 90.1-2023   GB/T 16674.3-2023   GB/T 3098.15-2023   GB/T 70.3-2023   GB/T 3098.6-2023  
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