976 GB/T 15856.2-1995 十字槽沉头自钻自攻螺钉 Cross recessed countersunk head self-drilling tapping screws
977 GB/T 15856.3-1995 十字槽半沉头自钻自攻螺钉 Cross recessed raised countersunk head self-drilling tapping screws
978 GB/T 15856.4-1995 六角法兰面自钻自攻螺钉 Hexagon flange head self-drilling tapping screws
979 GB/T 16442-1996 平面二次包络环面蜗杆传动术语 Planar double-enveloping worm gearing terminology
980 GB/T 16443-1996 平面二次包络环面蜗杆传动几何要素代号 Planar double--enveloping worm gearing geometrical data symbols
981 GB/T 16444-1996 平面二次包络环面蜗杆减速器系列、润滑和承载能力 Planar double-enveloping worm gearsreducer-dimensions and load capacitys
982 GB/T 16445-1996 平面二次包络环面蜗杆传动精度 Planar double-enveloping worm gearing accuracy
983 GB/T 16446-1996 平面二次包络环面蜗杆减速器技术条件 Planar double-enveloping worm gearing reducer technical specification
984 GB/T 16643-1996 滚动轴承 滚针和推力圆柱滚子组合轴承 外形尺寸 Rolling bearings--Combined needle roller thrust roller bearings--Boundary dimensions
985 GB/T 16674-1996 六角法兰面螺栓 小系列 Hexagon flange bolts--Small series
986 GB/T 16748-1997 滑动轴承 金属轴承材料的压缩试验 Plain bearings--Compression testing of metallic bearing materials
987 GB/T 3481-1997 齿轮轮齿磨损和损伤术语 Cears--Wear and damage to gear teeth--Terminology
988 GB/T 16823.1-1997 螺纹紧固件应力截面积和承载面积 Stress area and bearing area for threaded fasteners
989 GB/T 16823.2-1997 螺纹紧固件紧固通则 General rules of tightening for threaded fasteners
990 GB/T 16823.3-1997 螺纹紧固件拧紧试验方法 Method of tightening test for threaded fasteners
991 GB/T 16824.1-1997 六角凸缘自攻螺钉 Hexagon head tapping screws with collar 992 GB/T 16824.2-1997 六角法兰面自攻螺钉 Hexagon flange head tapping screws
993 GB/T 16848-1997 直廓环面蜗杆、蜗轮精度 Accuracy of double enveloping worm gearing with straight line generatrix
994 GB/T 5858-1997 重载传动用弯板滚子链和链轮 Heavy-duty cranked-link transmission roller chains and chain wheels
995 GB/T 1243-1997 短节距传动用精密滚子链和链轮 Short pitch transmission precision roller chains and chain wheels
996 GB/T 3931-1997 联轴器 术语 Coupling--Vocabulary
997 GB/T 1568-1997 键 技术条件 Technical specifications for keys
998 GB/T 271-1997 滚动轴承 分类 Rolling bearings--Classification
999 GB/T 16922-1997 薄型楔键及其键槽 Thin taper reys and their corresponding keyways