GB/T 31.2-2025

Active

Fasteners—Hexagon head bolts with split pin hole on shank—Part 2: Reduced shank—Product grade B

紧固件 六角头螺杆带孔螺栓 第2部分：细杆 B级

Standard Type
GBT
ICS
21.060.10
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