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How are you going to hold it in the boat? I’ve meve heard of a product called Delron. I know of “DELRIN” and you can’t even successfully glue that together with crazy glue. 

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Delrin is a self lubricating material used on slides on machines and so on.

Dave

Edited by dave roach

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Sam

With size are you tapping the holes.Using a standard cutting tap on something soft is a weak thread.A form tap rolls the thread and make a very strong thread.If you can give me a print on were the hole are going and what size I can do it for you.Call me tomorrow.

 

Dave

Edited by dave roach

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On ‎12‎/‎1‎/‎2018 at 11:14 PM, steve wood said:

Drill under size ,standard tap,long bolt, no problem. Doing that way for 20 years

This , it will insure nice tight threads ,

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Samuel,

I'd strongly suggest investing in the form tap. It'll cost you $20-ish, each,  and you'll get a much better result. Form tapping in Delrin produces a nylock effect, and the screws will not vibrate loose. You also don't have to worry about chasing chips to the bottom of the hole, as there are no chips from the tap.You'll wish you'd done it sooner.

For example: Fhttps://www.mscdirect.com/product/details/49710593

Tap drill sizes for form tapping:

#4-40 - .098-.100"

#6-32 - .122" (ideal) but a .125" will work

#8-32 - .149"

#10-32 - .177"

Thanks. Brad.

Titan Racing Components

Blackack Hydros

Model Machine And Precision LLC

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