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tek screw drill point sizes

tek screw drill point sizes

tek screw drill point sizes

(OP)
WHere can you find the required drill point diameter for self drilling tek screws?

RE: tek screw drill point sizes

?? self drilling = no need for a drill bit as the screw has their own drill point as part of the fastener.

RE: tek screw drill point sizes

(OP)
mcgyvr,

thank you, but what I'm looking for is the drill point diameter of the self drilling screw.

hinged

RE: tek screw drill point sizes

Buy a screw,
 Take a caliper or a micrometer and measure it.
B.E.

RE: tek screw drill point sizes

You might request a CAD model from the mfr, as well.

RE: tek screw drill point sizes

I understand that the question is along the lines of when can you use a screw with a #1 point; when do you have to use a #2 instead of a #1, when do you have to use a #3 instead of a #2, right?  Here's what the Cold-Formed Steel Engineers Association has to say in Tech Note TN-565c:

Format:
nominal screw size / maximum recommended total thickness of steel sheets

For #2 Point Style
4 / 0.080"
6 / 0.090"
8 / 0.100"
10 / 0.110"
12 / 0.140"
1/4" / 0.175"

For #3 Point Style
6 / 0.090"-0.110"
8 / 0.100"-0.140"
10 / 0.110"-0.175"
12 / 0.110"-0.210"
1/4" / 0.110"-0.210"

I don't know why the #3 point style data is given in a range, while the #2 gives a single value.  Evidently #1 points are for very light connections and are not worth including in this table.  Suggest you obtain TN-565c -- I belong to the association, and I can not recall if it is free or for a charge.

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