When did square nails stopped being used?

Square-head nails were made from the late 1700s until about 1830. Most were machine-cut and finished off by a blacksmith who squared the heads. From 1830 to 1890, cabinetmakers used headless, machine-cut nails that are a tapered, rectangular shape.

When did they build houses with square nails?

Square nails were used in construction until the late 19th century.

What screw is equivalent to a 16d nail?

The #9 and #10 SD screws replace 10d and 16d nails, respectively. The single-fastener load capacity of the #9 SD screw exceeds the capacity of a 10d common nail, while the single-fastener load capacity of the #10 SD screw exceeds that of the 16d common nail.

Can I use a regular nail gun to install hardwood floors?

You may use certain types of nail guns to install a hardwood floor, but practice on scrap wood first to ensure that you master the correct technique. You can use three types of nailers on a hardwood floor: a flooring nailer, a finish nailer or a flooring and mallet nailer.