71 GB/T 291-1964 螺旋滚子轴承 结构型式和基本尺寸 Rolling bearings with helically wound cylindrical rollers--Types and basic dimensions
72 GB/T 292-1994 滚动轴承 角接触球轴承 外形尺寸 Rolling bearings--Angular contact ball bearings--Boundary dimensions
73 GB/T 294-1994 滚动轴承 三点和四点接触球轴承 外形尺寸 Rolling bearings--Three point and four point contact ball bearings--Boundary dimensions
74 GB/T 296-1994 滚动轴承 双列角接触球轴承 外形尺寸 Rolling bearings--Double row angular contact ball bearings--Boundary dimensions
75 GB/T 297-1994 滚动轴承 圆锥滚子轴承 外形尺寸 Rolling bearings--Tapered roller bearings--Boundary dimensions
76 GB/T 299-1995 滚动轴承 双列圆锥滚子轴承 外形尺寸 Rolling bearings--Metric double row tapered roller bearings--Boundary dimensions
77 GB/T 300-1995 滚动轴承 四列圆锥滚子轴承外形尺寸 Rolling bearings--Four row tapered roller bearings--Boundary dimensions
78 GB/T 301-1995 滚动轴承 推力球轴承 外形尺寸 Rolling bearings--Thrust ball bearings--Boundary dimensions
79 GB/T 304.1-1988 关节轴承 分类 Spherical plain bearings Classification
80 GB/T 304.2-1988 关节轴承 代号方法 Spherical plain bearings Identification code
81 GB/T 304.3-1990 关节轴承 配合 Spherical plain bearings-Fits
82 GB/T 304.9-1981 向心关节轴承 技术条件Spherical plain radial bearings, joint type--Technical requirements
83 GB/T 304.10-1989 关节轴承公差 Spherical plain bearings-Tolerances
84 GB/T 307.1-1994 滚动轴承 向心轴承 公差 Rolling bearings--Radial bearings--Tolerances
85 GB/T 307.2-1995 滚动轴承 测量和检验的原则及方法 Rolling bearings--Measuring and gauging principles and methods
86 GB/T 307.3-1996 滚动轴承 通用技术规则 Rolling bearings--General technical regulations
87 GB/T 307.4-1994 滚动轴承 推力球轴承 公差 Rolling bearings--Thrust ball bearings--Tolerances
88 GB/T 308-1989 滚动轴承 钢球 Rolling bearings-Steel balls
89 GB/T 309-1984 滚动轴承 滚针 Rolling bearings--Needle rollers
90 GB/T 794-1993 加强半圆头方颈螺栓 Strengthened cap head square neck bolts
91 GB/T 798-1988 活节螺栓 Eye bolts
92 GB/T 799-1988 地脚螺栓 Eyelet bolts
93 GB/T 800-1988 沉头双榫螺栓 Flat countersunk double nib bolts
94 GB/T 802-1988 组合式盖形螺母 Acorn nuts
95 GB/T 804-1988 球面六角螺母 Hexagon nuts with raised face
96 GB/T 805-1988 扣紧螺母 Tight nuts
97 GB/T 806-1988 滚花高螺母 Knurled nut with collar
98 GB/T 807-1988 滚花薄螺母 Knurled nuts
99 GB/T 808-1988 小六角特扁细牙螺母 Small hexagon thin nuts-Fine pitch thread
100 GB/T 809-1988 嵌装圆螺母 Insert round nuts101 GB/T 810-1988 小圆螺母 Small round nuts
102 GB/T 812-1988 圆螺母 Round nuts
103 GB/T 815-1988 端面带孔圆螺母Round nuts with drilled holes in one face
104 GB/T 816-1988 侧面带孔圆螺母 Round nuts with set pin holes in side
105 GB/T 817-1988 带槽圆螺母 Slotted round nuts
106 GB/T 818-1985 十字槽盘头螺钉 Cross recessed pan head screws
107 GB/T 819-1985 十字槽沉头螺钉 Cross recessed countersunk head screws
108 GB/T 820-1985 十字槽半沉头螺钉 Cross recessed raised countersunk head screws