DIN/ EN/ ISO 区别-螺母
- 分类：DIN EN ISO DIFFERENCES
- 发布时间：2020-11-30 17:26:03
DIN/ EN/ ISO DIFFERENCES IN NUTS
DIN/ EN/ ISO 区别
Gain an insight into the difference between DIN, EN and ISO standards
This part is intended to assist you in the changeover from withdrawn DIN standards to current EN and/or ISO standards. Information is given on which changes of the respective product standard are relevant for application.
Hexagon regular nuts 常规六角螺母
When changing from DIN to ISO standards, some nut heights have been increased and the widths across flats for the dimensions M10, M12, M14 and M22 have been changed. The proof loads have also been increased. The coarse pitch threads have to comply with ISO 898-2, the fine pitch threads with ISO 898-6. Nuts according to DIN 934 only have to withstand lower proof loads according to DIN 267-4. You can identify nuts with reduced loadability according to ISO 898 Part 2 or Part 6, because they have bars next to the marking of the property class, e.g. I8I.
从DIN标准更改为ISO标准时，部分螺母高度增加，M10、M12、M14和M22尺寸的对边宽度也已更改。验证载荷也增加了。粗螺距螺纹必须符合ISO 898-2，细螺距螺纹必须符合ISO 898-6。符合DIN 934的螺母只能承受DIN 267-4规定的较低验证载荷。根据ISO 898第2部分或第6部分，您可以识别承载能力降低的螺母，因为它们在属性等级标记旁边有条，例如I8I。
Hexagon thin nuts 六角薄螺母
The DIN standards for hexagon thin nuts have been withdrawn in favour of the successor ISO standards. Except the widths across flats, DIN 439 Part 2 already mostly complied with ISO 4035. Thus they are interchangeable.
六角薄螺母的DIN标准已被撤销，取而代之的是ISO标准。除对边宽度外，DIN 439第2部分已基本符合ISO 4035。因此它们是可互换的。
DIN 936 has been withdrawn without replacement, as it is only rarely used. Nuts according to this standard do not have defined proof loads for threads. It is recommended to test the usability of these nuts according to ISO 4035.
由于很少使用，DIN 936已被撤回，无需更换。根据本标准，螺母没有规定螺纹的验证载荷。建议根据ISO 4035测试这些螺母的可用性。
Dimensional comparison of hexagon nuts according to DIN and ISO standards 符合DIN和ISO标准的六角螺母尺寸比较
Hexagon nuts with flange 六角法兰螺母
The DIN standards for hexagon nuts with flange have been almost completely withdrawn and replaced by successor EN standards. The nut heights and some widths across flats have been changed.
Special attention should be paid not to replace nuts according to EN standards by nuts according to withdrawn DIN standards.
Prevailing torque type hexagon nuts 通用扭矩型六角螺母
All DIN standards for prevailing torque type hexagon nuts (locknuts) have been withdrawn and replaced by successor ISO standards. There have been many changes when introducing the ISO standards.
Please note that in the successor ISO standard 10511 of DIN 985, which is still often used, the property classes have been changed, as these are nuts with reduced loadability.
Special attention should be paid not to replace nuts according to ISO standards by nuts according to withdrawn DIN standards.
Weld nuts 焊接螺母
Until now only DIN 977 hexagon weld nut with flange, has been withdrawn. When changing this standard to ISO 21670, there have not been any changes relevant to the application.
迄今为止 只有DIN977 六角法兰焊母的DIN标准被废止, 并且在ISO21670替代的过程中,并没有任何改变。
Cap nuts 盖螺母
The DIN standards for cap nuts are still valid and are not replaced by successor ISO standards. Only DIN 986, pre- vailing torque type hexagon dome cap nut, has been withdrawn without replacement.
帽螺母的DIN标准仍然有效,并未被ISO标准所替代. 只有DIN986预置扭矩式帽螺母的DIN标准被废止,并且没有后续的ISO 标准所替代。
Hexagon castle nuts 六角开槽螺母
The DIN standards for hexagon castle nuts are still valid and have not been replaced by successor ISO standards yet. Only DIN 937, hexagon thin castle nut (previous design), has been withdrawn in favour of the similar castle nut accor- ding to DIN 979.
Other nuts 其他螺母