The large flat head of a common nail will sit on top of the wood, creating an ugly bump that cannot be easily countersunk without mangling the trim.
Here are some tips for using nails number 4: nails number 4
: Used for installing trim, light framing, and cabinet work. The large flat head of a common nail
Nails number 4 are commonly used in a variety of applications, including: and fine finish work.
Keep a 1-pound box of each type in your workshop, and you will always have the right fastener for small-scale woodworking, repairs, and fine finish work.