The thread size WW standard American 0.275 x 40 fit most all 8mm lathes such as:
Bergeon, Levin, Derbyshire, Boley, American Watch Tool Co., Peerless, Marshall, and most others.
And metric size M7 x 0.75 such as Vector and HOROTEC German brand.
Please note that the product picture is for reference purposes only and may not depict the exact item and size you are purchasing.
If you have any questions, please do not hesitate to contact us at anytime.

43mm ID x 53mm OD x 5mm CS Fluoro Rubber O-Ring 5 Pcs
Watch Case Clamps Movement Screws for ETA 2824 2836 2846 






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