T use, insert into holes to be transfered and tighten with a wrench. Next, invert the screw and apply onton the new material and strike a sharp blow. The drill center will penetrate the new material to a depth of .010 to .015". Screws are case-hardened steel and have a uniform shoulder height regardless of diameter.
WARNING: This Product Can Expose You To Materials And/Or Chemicals Which Are Known To The State Of California To Cause Cancer And/Or Reproductive Harm.