21.040 螺纹 标准查询与下载

CSN 25 4254-1961 非穿过型/圆柱型螺纹规限制的测量部件

Screw gauges. Measuring parts for "not go" limits of cylindrical thread gauges. Cycle thread

CSN 25 4250-1961 直径8mm到30mm双边圆柱形极限螺纹规．环形螺纹

Cylindrical limit thread gauges, bothsided. Diameter from 8 to 30. Cycle thread

CSN 25 4261-1961 穿过型新环形螺纹校准量规．环形螺纹

Screw gauges. Reference gauges for new ring thread "go" gauges. Cycle thread

CSN 25 4252-1961 圆柱形螺纹穿过型限的测量部件．环形螺纹

Screw gauges. Measuring parts for "go" limit of cylindrical thread gauges. Cycle thread

CSN 25 4264-1961 穿过型量规耐磨环形校准螺纹的测量部件．环形螺纹

Screw gauges. Measuring parts of reference gauges on wearing for ring thread "go" gauges. Cycle thread

CSN 25 4262-1961 穿过型规新型环形螺纹校准量规的测量部件

Screw gauges. Measuring parts of reference gauges for new ring thread "go" gauges. Cycle thread

CSN 25 4265-1961 非穿过型规限制环形螺纹．直径8 到100 mm的环形螺纹

Screw gauges. Limit ring thread "not go" gauges. Diameter from 8 to 100 mm. Cycle thread

CSN 25 4253-1961 非穿过型规圆柱形螺纹．直径32 到100 mm的环形螺纹

Screw gauges. Cylindrical thread "not go" gauges diameter from 32 to 100 mm. Cycle thread

CSN 25 4263-1961 穿过型耐磨环形螺纹检校量规．环形螺纹

Screw gauges. Reference gauges on wearing for ring thread "go" gauges. Cycle thread

CSN 25 4266-1961 非穿过型规环形螺纹的校准量规．环形螺纹

Screw gauges. Reference gauges for ring thread "not go" gauges. Cycle thread

CSN 25 4260-1961 穿过型规环形限制螺纹．直径为8m到100mm的环形螺纹

Screw gauges. Ring limit thread "go" gauges. Diameter from 8 to 100 mm. Cycle thread

HB 247-1972 锥螺纹

本标准适用于气体或液体管路的螺纹连接。

Taper thread

HB 241-1975 普通螺纹

Common screw thread

HB 242-1970 间隙螺纹

本标准仅规定外螺纹，与其相配合的内螺纹按HB241-70标准制造。允许与HB241-70标准中任意精度的内螺纹相配合。 　　本标准适用于带有金属镀层的或在高温条件下工作的螺纹连接件。

Clearance screw thread

HB 246-1975 螺纹收尾（螺尾，螺纹空白，退刀槽，倒角，环槽）

本标准规定了普通螺纹、间隙螺纹和过盈螺纹的螺尾、螺纹的空白、退刀槽、倒角和环槽的型式和尺寸。

Screw thread finishing (washout thread, thread margin, undercut, chamfer, ring groove)

SJ/T 10731-1996 普通间隙螺纹公差

Tolerances for regular clearance screw threads

HB 0-3-1983 螺纹零件的标志

本标准规定了钢制螺栓、螺钉和螺母的标志。以区别材料牌号和任何材料的螺栓光杆直径的公差等级。

Sign of threaded parts