A WORD ON THREAD FORMS
The American standard for tapered or parallel threads have a thread flank angle of 60°. The British standard for tapered or parallel threads have a thread flank angle of 55°. Identification can also be made by inspecting the root and crest of the threads. The truncation of the root and crest of American standard threads are flat. The truncation of the root and crest of British standard threads are round.
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|
Part No. |
Model No. |
Thread Size |
Height |
Height w.Handle |
Base |
|
904009 |
MF 849 ½ (12.70mm) |
1/2” (12.70mm) |
3” (76.20mm) |
4” (101.60mm) |
3” (76.20mm) |
|
904010 |
MF 849 ¾ (19.04mm) |
3/4" (19.05mm) |
3” (76.20mm) |
4” (101.60mm) |
3” (76.20mm) |
|
904011 |
MF 849 1-1/2 (38.09mm) |
1-1/2” (38.1mm) |
5” (127.00mm) |
8” (203.20mm) |
6” (152.40mm) |