How does a nail hold two things together? How doesn’t it not fall back out of the hole it created over time?
In: Engineering
Nails can work their way out over time, but it will not simply fall out because you are compressing the material when driving it. So there is pressure acting against the nail to keep it in place. However the pressure depends on the material, its density, composition, and integrity. (Imagine nailing two pieces of cheese together, or nailing drywall / particleboard.) How quickly would those nails “fall back out?”
However, you will notice that even in an ideal medium like a pine 2×4, screws, or glue along with nails are recommended over nails alone for reasons of durability.
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