已选条件：
螺纹
| 标准编号 | 标准名称 | 发布部门 | 发布日期 | 状态 | |
| SANS 1700-2-21 Ed. 1 (2004) | Fasteners - Part 2: Screw Threads - Section 21: Aerospace - Mj Threads - General Requirements | South Afri.. | 2004-04-23 | 被替代 | |
| BS 6053:1981 | Specification for outside diameters of conduits for electrical installations and threads for conduits and fittings | British St.. | 1981-02-27 | 被替代 |
