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Squibb Separatory Funnels, PTFE Valve and Tip, Threaded - Corning ...
These 1L improved PYREX® Squibb type glass separatory funnels provide an unbreakable PTFE valve and drip tip and have a screw thread closure at the top. ...
catalog2.corning.com/.../category.aspx?...%20Threaded%20Cap(Lifesciences) - Cached
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ACCUFORM® Micro Vials With Open-Top Screw Thread - Cardinal
With Open-Top Screw Thread Closure. Open-top closure and conical cavity give you easy access to contents. (Kimble Chase) These KG-33 clear borosilicate ...
www.cardinal.com/us/en/distributedproducts/ASP/C4800-8X.asp... - Cached

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Note added at 18 mins (2010-11-04 19:38:55 GMT)
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Metric course screw thread > rosca de tornillo de paso métrico
10 Apr 2009 ... (KudoZ) English to Spanish translation of Metric course screw thread: rosca de tornillo de paso métrico [Motor diesel/ especificaciones ...
www.proz.com/.../3189380-metric_course_screw_thread.html - Cached
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UPSET THREAD > Rosca cónica
upset thread. Rosca cónica. Explanation: The screw passes through a hole the ...
www.proz.com/kudoz/.../4017148-upset_thread.html - Cached
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"rosca para unión"
English translation:screw thread for the connection. Explanation: Estarán ...
www.proz.com/...to.../1848484-rosca_para_unión.html - Cached

hope this helps you somehow!

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Note added at 23 mins (2010-11-04 19:44:07 GMT)
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see page 6 re "screw threads"

this may be completely wrong, but at least there is some context here:

http://docs.google.com/viewer?a=v&q=cache:SgmeAwATWe4J:www.f...