Got a metalworking project?
These self-drilling screws could save you a step!
They're steel with a zinc-plated finish for corrosion resistance, and they have a #3 drill point that lets them drill their own hole as you drive them in.
The thread size is #12-14, they're 3-1/2 inches long, and they come with a Phillips drive and pan head (flat top with rounded edges).
The Phillips design is meant to help prevent over-tightening by allowing the driver to cam out.
Since they're self-drilling, you typically don't need to pre-drill a hole in metal - the drill point penetrates first, then the threads follow.
They're often used for attaching metal to metal, and some versions even have wings for wood-to-metal applications.
This pack gives you 25 screws, which is handy for bigger jobs or just having extras on hand.
Strong, functional, and time-saving!
