GB/T 3098.2-2025 Active National standards

GB/T 3098.2-2025 Mechanical properties of fasteners—Part 2:Nuts

GB/T 3098.2-2025 Mechanical properties of fasteners—Part 2:Nuts

Publish Date: 2025-10-31 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 3098.2-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Fasteners

ICS Name: \nNut

Publish Date: 2025-10-31

Implement Date: 2026-02-01

Pages: 40 pages

Scope

This document specifies the mechanical and physical properties of coarse-threaded and fine-threaded nuts made from carbon steel or alloy steel when conducting tests under ambient temperatures of 10℃ to 35℃.
The nuts applicable to this document:
a) Comply with the general thread specifications defined in GB/T 192;
b) Meet the diameter and pitch combinations specified in GB/T 193 and GB/T 9144;
c) Coarse-threaded specifications: M5 to M39;
d) Fine-threaded specifications: M8×1 to M39×3;
e) Performance grades: 04, 05, 5, 6, 8, 10, and 12, including guaranteed load;
f) Three nut types (see 5.1): standard nut (Type 1), high nut (Type 2), and thin nut (Type 0);
g) Minimum outer diameter or width of opposite sides (s)≥1.45D;
h) Can be used with bolts, screws, and studs meeting the performance grades specified in GB/T 3098.1 (see Appendix B);
i) Operating temperature range: -50℃ to +150℃ or up to +300℃.

Development Information

Word Count: 61 Thousand words Pages: 40 pages

Same series standard

GB/T 3098.5-2025 Mechanical properties of fasteners—Part 5:Tapping screws

Replace the following standards

GB/T 3098.2-2015 Mechanical properties of fasteners—Nuts

Referenced Standards

GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 231.1-2002 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2018 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 3098.9-2002 Mechanical properties of fasteners—Prevailing torque type steel hexagon nuts GB/T 3098.9-2010 Mechanical properties of fasteners—Prevailing torque type steel nuts GB/T 3098.9-2020 Mechanical properties of fasteners—Prevailing torque type steel nuts GBT 3099.4 GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 5267.3-2008 Fasteners—Hot dip galvanized coatings GB/T 5779.2-2000 Fasteners—Surface discontinuities—Nuts GB/T 16825.1-2002 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system GB/T 16825.1-2008 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system GB/T 16825.1-2022 Metallic materials—Calibration and verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Calibration and verification of the force-measuring system GB/T 39310-2020 Fasteners—Types of inspection documents

Adopt standards

ISO 898-2:2022

Related Standards

GB/T 809-1988 Active

GB/T 809-1988 Insert round nuts

Publish Date: 1988-06-24

GB/T 1229-1991 Replaced

GB/T 1229-1991 High strength large hexagon nuts for steel structures

Publish Date: 1991-04-22

GB/T 17880.1-1999 Active

GB/T 17880.1-1999 Flat head riveted nuts

Publish Date: 1999-10-11

GB/T 17880.2-1999 Active

GB/T 17880.2-1999 Countersunk head riveted nuts

Publish Date: 1999-10-11

GB/T 17880.3-1999 Active

GB/T 17880.3-1999 Small countersunk head riveted nuts

Publish Date: 1999-10-11

GB/T 17880.4-1999 Active

GB/T 17880.4-1999 120°Small countersunk head riveted nuts

Publish Date: 1999-10-11