Ream the hole bigger and use the correct plug.

That is the correct way


john wrote:
My tire is punctured by a small screw. I bought a tire plug repair kit, but
it seems like I have to first make the puncture hole *bigger* before I stick
in the plug.

Of the hundreds type of sealant/adhesive sold in home stores, is there one
that I can inject into the puncture (this won't make the hole bigger) and
would cure to the consistency of tire rubber?