Home / Standards / GB/T 3098.2-2025 GB/T 3098.2-2025 Active Mechanical properties of fasteners—Part 2: Nuts 紧固件机械性能 第2部分:螺母 Standard Type GBT ICS 21.060.20 CCS J13 Status 现行 Issue Date 2025-10-31 Implementation 2026-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A