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What is the thread spec (size, thread-pitch and length) of the tow ring that came with the 450?

Does the 451 use the same thread?


Thanks!!


Tom Norris
 

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The 451 tow eye is ISO metric Acme thread M16x4. It is likely that the 450 is the same. The thread is intended to withstand a lot of lineal tension (towing) while being easily inserted and removed without binding (by hand).
 
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