When shopping for iron wire nails, you will likely come across two distinct variations: common round and high quality. The primary discrepancy between the two lies in the amount of zinc present in their composition. Referred to as a ‘protective metal’, zinc is applied to steel to defend it from corrosion and rusting. Thus, the greater the number of zinc molecules used during fabrication, the better the level of shield – though it also means that higher quality nails tend to cost more.
Common round iron wire nails are exactly as they sound: ordinary. Created with inexpensive steel and a skimpy shielding of zinc, these small nails don’t provide the robust strength of costlier alternatives. While this implies you won’t get as much longevity out of them, their lower price tag makes them ideal for projects where longevity is not a chief concern.
If you are looking for nails that can stand the test of time, investing in high quality iron wire nails is the way to go. Not only are these nails made with superior grade steel, but they also come coated with a thick zinc layer which provides increased resistance to rust and corrosion. Yes, they may cost more than basic nails, however, the extra expense is well worth it for a strong and dependable nail.
For projects that require toughness and long-lasting strength, it is wise to select high quality nails instead of common round nails. If durability is not as significant, however, the round type will suffice. It all depends on your specific requirements.