GB/T 15756-1995 in English

《GB/T 15756-1995普通螺纹 极限尺寸》由TC108（全国螺纹标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了牙型符合GB 192、直径与螺距系列符合GB 193表中粗黑线左上方的规格、公差符合GB 197的普通螺纹极限尺寸。本标准适用于公称直径1至300mm、公差带为4H、5H、6H、7H、4h、5h 6h、6h、6g、6f、6e、8h或8g的常用普通螺纹。

Scope

This standard stipulates that the tooth type conforms to GB 192, the diameter and pitch series conform to the specifications on the upper left of the thick black line in the GB 193 table, and the tolerance conforms to the limit dimensions of ordinary threads in GB 197. This standard applies to commonly used ordinary threads with a nominal diameter of 1 to 300 mm and a tolerance zone of 4H, 5H, 6H, 7H, 4h, 5h, 6h, 6h, 6g, 6f, 6e, 8h or 8g.