GB/T 70.2-2015 (English Version) PDF

Standard No.: GB/T 70.2-2015
Language: Chinese, Available in English version
Release Date: 2017
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 70.2-2015
Replace: GB/T 70.2-2008

Scope: This part of GB/T70 stipulates that the thread specification is M3-MI16, and the performance grades are 08.8, . , A5-070 and A5-080 grades. The product grade is A grade, and the type, size, technical conditions and marks of the hexagon socket head cap screws with reduced load-bearing capacity are listed in Table 3. This section applies to the use of a hexagonal wrench to screw the hexagonal socket head cap screws of the internal thread of the human body.

GB/T 70.2-2015 Referenced Document

GB/T 1237 Designation system for fasteners
GB/T 16938 Fasteners.Gerneral requirements for bolts,screws,studs and nuts
GB/T 193 General purpose metric screw threads--General plan
GB/T 2 Fasteners.Ends of parts with external thread
GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
GB/T 3098.6 Mechanical properties of fasteners—Stainless steel bolts，screws and studs*， 2023-05-23 Update
GB/T 5267.1 Fastener Plating*， 2023-05-23 Update
GB/T 5267.2 Fasteners—Non-electrolytically applied zinc flake coatings*， 2021-12-31 Update
GB/T 5267.4 Passivation of corrosion-resistant stainless-steel fasteners
GB/T 5276 Fasteners.Bolts, screws, studs and nuts.Symbols and descriptions of dimensions
GB/T 5779.3 Fasteners-Surface discontinuities-Bolts,screws and studs for special requirements
GB/T 70.2 Hexagon Socket Head Screws
GB/T 70.5 Gauging of hexagon sockets
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