GB/T 32076.8-2017
High-strength structural bolting assemblies for preloading—Part 8: Torshear type bolt with cup head,and nut assemblies (English Version)

Standard No.

GB/T 32076.8-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Latest

GB/T 32076.8-2017

Scope

This part of GB/T32076 and GB/T32076.1 stipulate that the thread specification is M12-M36, the performance level is 10.9/10, and the pinch-shear type round-head bolt and nut connection pair for preloaded high-strength bolted structures (hereinafter referred to as bolts) connection pair). The allowable preload of the bolted connection pair designed in this part is 0.7R-XA.... The bolted connection pair specified in this section consists of a bolt, a nut and a washer (used only under the nut bearing surface). NOTE: To achieve satisfactory results, it is important to ensure the correct use of bolts. For the correct method of use, you can consult or refer to the relevant specifications. See GB/T32076.2 for the preload adaptability test method. This part applies to industrial and civil buildings, bridges, tower bridge structures, boiler steel structures, hoisting machinery and other steel structures connected by preloaded high-strength bolts.

GB/T 32076.8-2017 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 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 32076.3 High-strength structural bolting assemblies for preloading.Part 3:System HR.Hexagon bolt with large width across flats and nut assemblies
• GB/T 32076.6 Preloaded high strength bolted structural connections - Part 6: Chamfered flat washers
• GB/T 32076.8 High-strength structural bolting assemblies for preloading—Part 8: Torshear type bolt with cup head,and nut assemblies
• 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 5276 Fasteners.Bolts, screws, studs and nuts.Symbols and descriptions of dimensions
• 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

GB/T 32076.8-2017 history

• 2017 GB/T 32076.8-2017 High-strength structural bolting assemblies for preloading—Part 8: Torshear type bolt with cup head,and nut assemblies

GB/T 32076.8-2017 -All Parts