机床和辅助设备用三通螺栓、三通螺母和榫头用三通槽的尺寸。指定机床底座中T形槽与T形螺栓、T形螺母和榫头材料之间的节距范围。涵盖的T形槽标称尺寸范围为M4至M48。交叉引用:BS 970:第1BS 4168部分:第1BS 4186BS 4500部分:第1部分

Dimensions for tee slots for use in machine tools and auxiliary equipment, for tee bolts, tee nuts and tenons. Specifies a range of pitches between tee slots in machine beds and materials for tee bolts, tee nuts and tenons. The range of nominal sizes of tee slots covered is from M4 to M48.Cross References:BS 970:Part 1BS 4168:Part 1BS 4186BS 4500:Part 1