The "crown" of the staple is the part that still shows after you punch a staple through the materials you are fastening together. The "legs" are perpendicular to the "crown" and parallel to each other and they penetrate the materials.
Meets the requirements of ASTM F1667
Easy to use
For use in Bostitch SX1838K, SX150K-1, SB-150SX, S