GB/T 31.2-2025
紧固件 六角头螺杆带孔螺栓 第2部分:细杆 B级
Fasteners—Hexagon head bolts with split pin hole on shank—Part 2: Reduced shank—Product grade B
- 实施日期
- 2026-02-01
- ICS 分类
- 21.060.10
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 1,626 条
GB/T 31.2-2025
Fasteners—Hexagon head bolts with split pin hole on shank—Part 2: Reduced shank—Product grade B
GB/T 13487-2025
Synchronous belt drives—Synchronous belts for general drive
GB/T 21466.2-2025
Plain bearing—Hydrodynamic plain journal circular cylindrical bearings under steady-state conditions—Part 2: Functions used in the calculation procedure
GB/T 19436.2-2025
Electrical safety of machinery—Electro-sensitive protective equipment—Part 2:Particular requirements for equipment using active opto-electronic protective devices(AOPDs)
GB/T 19436.1-2025
Electrical safety of machinery—Electro-sensitive protective equipment—Part 1: General requirements and tests
GB/T 6443-2025
Information of dimensional data and other requirements given on the drawing for cylindrcal involute gears
GB/T 10412-2025
Belt drives—Grooved pulleys for classical and narrow V-belts (system based on datum width)
GB/T 18325.1-2025
Plain bearings—Bearing fatigue—Part 1:Plain bearings in test rigs and in applications under conditions of hydrodynamic lubrication
GB/T 18324-2025
Plain bearings—Copper alloy bushes—Dimensions and tolerances
GB/T 10445-2025
Plain bearings—Shaft diameters for unsplit bushes
GB/T 10413-2025
Belt drives—Grooved pulleys for narrow V- belts (system based on effective width)
GB/T 4605-2025
Rolling bearings—Thrust needle roller and cage assemblies, thrust washers
GB/T 16848-2025
Accuracy of hourglass worms and worm gears
GB/T 11355-2025
V-belt and V-ribbed belt drives—Calculation of power ratings
GB/T 4662-2025
Rolling bearings—Static load ratings
GB/T 19673.1-2025
Rolling bearings—Accessories for sleeve type linear ball bearings—Part 1:Boundary dimensions,geometrical product specifications(GPS) and tolerances for series 1 and 3
GB/T 21466.3-2025
Plain bearing—Hydrodynamic plain journal circular cylindrical bearings under steady-state conditions—Part 3:Permissible operational parameters
GB/T 46597-2025
Belt drives—Grooved pulleys for joined classical V-belts—Groove sections AJ, BJ, CJ, DJ and EJ (effective system)
GB/T 19673.2-2025
Rolling bearings—Accessories for sleeve type linear ball bearings—Part 2:Boundary dimensions,geometrical product specifications(GPS) and tolerances for series 5
GB/T 3098.2-2025
Mechanical properties of fasteners—Part 2: Nuts