
Thread Tolerance Classes of Internally Threaded Adaptors
Thread tolerance classes of internally threaded adaptors.
| Thread tolerance classes of internally threaded adaptors | ||
|---|---|---|
| Finsh of fastener | Thread tolerance class | |
| Thread tolerance class of fastener before any surface coating | Thread tolerance classe of internally threaded adaptor | |
| As processed | 6h or 6g | 6H |
| Electroplating to ISO 4042 | 6g or 6e or 6f | 6H |
| Zinc flake coating to ISO 10683 | 6g or 6e or 6f | 6H |
| Hot dip galvanizing to ISO 10684 in order to mate with nuts tapped to thread tolerance classes: -6H -6AZ -6AX | 6az 6g or 6h 6g or 6h | 6H 6AZ 6AX |