GB/T 32076.7-2015
Connection pairs of preloaded high-strength bolted structures Part 7: M39~M64 large hexagon head bolt and nut connections (English Version)

Standard No.: GB/T 32076.7-2015
Language: Chinese, Available in English version
Release Date: 2016
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 32076.7-2015

Scope: This part of GB/T32076 and GB/T32076.1 stipulate the high-strength bolted structural bolt and nut connection pairs with thread specifications M39-M64, large hexagonal series, performance grade 10.9/10, HV type, and preload connection. . This part applies to industrial and civil buildings, bridges, tower bridge structures, boiler steel structures, hoisting machinery and other steel structures connected by high-strength bolts with preload connections. Appendix A gives the total clamping length and clamping length of the bolt and nut joints.

GB/T 32076.7-2015 Referenced Document

GB/T 1237 Designation system for fasteners
GB/T 193 General purpose metric screw threads--General plan
GB/T 22028 Hot-dip galvanized screw threads-On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat
GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
GB/T 3098.2 Mechanical properties of fasteners.Nuts
GB/T 3103.1 Tolerances for fasteners--Bolts,screws,studs and nuts
GB/T 3103.3 Tolerances for fasteners－Plain washers*， 2020-03-31 Update
GB/T 32076.1 Preloaded high strength bolted structural connections - Part 1: General requirements
GB/T 32076.2 Preloaded high strength bolted structural connections part 2: preload adaptability
GB/T 5267.2 Fasteners—Non-electrolytically applied zinc flake coatings*， 2021-12-31 Update
GB/T 5267.3 Fasteners.Hot dip galvanized coatings
GB/T 5779.1 Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements
GB/T 5779.2 Fasteners-Surface discontinuities-Nuts
GB/T 90.1 Fasteners—Acceptance inspection*， 2023-05-23 Update
GB/T 90.2 Fasteners--Marking and packaging
GB/T 9145 General purpose metric screw threads--Limits of sizes for the screw threads of medium quality and preferable plan

2016 GB/T 32076.7-2015 Connection pairs of preloaded high-strength bolted structures Part 7: M39~M64 large hexagon head bolt and nut connections