5 Boxes of Mag Nails in the select size. 100 Per Box. 
 
"Pound it Harder, Find it Farther! 
Before mag nails was PK nails. The creation of mag nails came from the need to find these set points by use of a metal detector. Since mag nails are magnetic, and larger in size than a PK they are found quicker and with greater ease using a locator. Furthermore Mag nails have a zinc coating to prevent corrosion and rusting longer than PK nails. This coating makes the nail shiny and more visible longer when set into different surfaces. However the most important improvement was the thickness of the striking head surface and the overall strength and durability of the nails; these nails are better able to withstand striking blows without the head coming off or the nail itself bending. So the slogan really means something, as the Mag's can be struck harder with a hammer, and found farther using a metal detector. "