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Author Topic: counter sink size??  (Read 899 times)

Longwalker

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counter sink size??
« on: September 17, 2019, 05:24:58 PM »
Hi Folks,
What is the preferred type and size for a counter-sink for a 5/16" head dia. oval head barrel tang bolt? Degree/angle of cut?
Any preferred number of flutes?
Your advice is much appreciated.
Harry
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Offline WKevinD

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Re: counter sink size??
« Reply #1 on: September 17, 2019, 06:17:14 PM »
https://www.mscdirect.com/product/details/01036045

This is what I use. 82* 5/16" body

Kevin
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PEACE is that glorious moment in history when everyone stands around reloading.  Thomas Jefferson

Offline D. Taylor Sapergia

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Re: counter sink size??
« Reply #2 on: September 17, 2019, 06:34:17 PM »
The beauty of those countersinks is that you can cut a parallel sided hole just below the surface of the steel/brass.  This makes finishing up the head of the screw much more robust, than simply filing off a countersunk screw head flush with the surface.
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D. Taylor Sapergia
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Art is not an object.  It is the excitement inspired by the object.
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