
Iso Metric Screw Threads - Part 2: Selected Limits Of Size For General Purpose Screw Threads
出版:South African Bureau of Standards

专家解读视频
Describes the fundamental deviations, tolerances and limits of size for the relevant of tolerances classes 4H, 5H, 6H and 7H for internal (nut) threads and 4h, 6g and 8g for external (bolt) threads, where appropriate for coarse pitch series within the range 1 mm to 68 mm diameter, fine pitch series within the range 1 mm to 33 mm diameter and constant pitch series within the range 8 mm to 300 mm diameter.