- Standard No.
- GB/T 3098.2-2015
- Language
- Chinese, Available in English version
- Release Date
- 2015
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Lastest
-
GB/T 3098.2-2015
- Replace
-
GB/T 3098.2-2000
GB/T 3098.4-2000
- Scope
- This part of GB/T 3098 specifies the mechanical and physical properties of nuts with coarse and fine threads made of carbon steel or alloy steel when tested at an ambient temperature of 10 °C to 35 °C. In this ambient temperature range, nuts complying with the technical requirements of this part may not meet the specified mechanical and physical properties at higher or lower temperatures. Nuts applicable to this section: a) Made of carbon steel or alloy steel; b) Coarse thread specification: M5≤D≤M39, and fine thread specification: M8×1≤D≤M39×3; c) Conforming to GB Ordinary thread specified in /T 192; d) Combination of diameter and pitch in accordance with GB/T 193 and GB/T 9144; e) Specified performance level and guaranteed load; f) Specified three types of thin nuts, standard nuts and high nuts Nut type; g) nut height mmin≥0.45D; h) outer diameter or width across sides smin≥1.45D (see Appendix A); i) performance and specified performance level (GB/ T 3098.1) for use with bolts, screws and studs. See GB/T 5267.3 for technical requirements on the surface treatment of hot-dip galvanized nuts. This part does not specify the following performance requirements: -- Effective torque type locking performance (see GB/T 3098.9); -- Torque-clamping force performance (see GB/T 16823.3 for test methods); -- Weldability; -- corrosion resistance.
GB/T 3098.2-2015 Referenced Document
- GB/T 16823.3 Fasteners—Torque/clamp force testing
- GB/T 16825.1 Metallic materials—Calibration and verification of static uniaxial testing machines—Part1:Tension/compression testing machines—Calibration and verification of the force-measuring system*, 2022-10-14 Update
- GB/T 192 General purpose metric screw threads--Basic profile
- GB/T 193 General purpose metric screw threads--General plan
- GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature*, 2021-12-31 Update
- GB/T 230.1 Metallic materials.Rockwell hardness test.Part 1:Test method*, 2018-05-14 Update
- GB/T 231.1 Metallic materials—Brinell hardness test—Part 1: Test method*, 2018-05-14 Update
- GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
- GB/T 3098.9 Mechanical properties of fasteners—Prevailing torque type steel nuts*, 2020-03-31 Update
- GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method
- GB/T 5267.3 Fasteners.Hot dip galvanized coatings
- GB/T 5779.2 Fasteners-Surface discontinuities-Nuts
- GB/T 6170 Hexagon nuts,style 1*, 2015-12-31 Update
- GB/T 6175 Hexagon nuts, style 2*, 2016-02-24 Update
- GB/T 90.3 Fasteners.Quality assurance system
- GB/T 9144 General purpose metric screw threads--Preferable plan
- ISO 18265:2013 Metallic materials.Conversion of hardness values
- ISO/TR 16224 Technical aspects of nut design
GB/T 3098.2-2015 history
- 2015 GB/T 3098.2-2015 Mechanical properties of fasteners.Nuts
- 2000 GB/T 3098.2-2000 Mechanical properties of fasteners--Nuts Coarse thread
- 0000 GB/T 3098.4-1986
- 0000 GB/T 3098.2-1982
GB/T 3098.2-2015 Mechanical properties of fasteners.Nuts has been changed from GB/T 3098.4-2000 Mechanical properties of fasteners-Nuts-Fine pitch thread.