Drill Bit Size for 1/4-20 Hurricane Nuts?

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David Carter · #1 Post by **David Carter** » Mon Apr 21, 2008 5:48 am

I've been using a 1/4" drill bit to drill the holes for 10-32 hurricane nuts. That was my biggest drill bit, so I'm going to need another one for the 1/4-20 hurricane nuts. What size drill bit should I be looking at for those holes?

LelandCrooks · #2 Post by **LelandCrooks** » Mon Apr 21, 2008 6:18 am

5/16 IIRC.

SoundInMotionDJ · #3 Post by **SoundInMotionDJ** » Mon Apr 21, 2008 9:04 am

You want the next increment larger than the nut size. In this case, the nut si 1/4", so 5/16 will work, but 9/32 would be better. So, if you have to go buy a single bit for the purpose...I'd get 9/32 if that's an option, or 5/16 if you can't get the other.

The h-nuts will fit into either hole...the 9/32 provides a slightly snugger fit.

--Stan Graves