Penny Size of Nails
- Penny size is bullshit. Penny size applied to different nail types means a different length! Read this - 
- Joist hanger names were called Tico nails .
- If double top plate - then 1.5" is not the limitation and 3" nails should be used.
- Sometimes 10D refers to diameter, as Tice 1.5" are called 10D - read comments at 
- Building code defines a 10D nail as a .148 nail, 3" long 
- 1" is 2D . Note that penny size came historically from cost of the nails in pennies. So the length is not proportial to D size. . The only thing we know is that the larger the D number, the larger the nail.
- 10D is 3" long - 
- Joist hanger nails do not seem to have D size attached to them - this one is 1.5" 
- This 8D is 1.5" long . Is that an error? Chart says 8D is 2.5".
- 3.5" common nail, galvanized. 16D 
Mitek Teco Nails + Gun
- Joist hanger nail gun
Positive Placement Nail Gun
Get yourself a hurricane tie gun