These nails are not NOT for DeWalt  51276! They are not the 34 degree angle that this finish nailer requires. Bought some and am sending 4 boxes back the angle is not marked on the Senco packaging at all. A302000 and A302509 WONT WORK WELL IN THIS NAILER. I noticed the angle was slightly off but the first 4 nails came out just fine and BAM #5&6 came out at the same time and bent over and left 1/2" folded over on the surface. This is UNACCEPTABLE IN FINISH WORK!!!  Buy something else that is clearly marked 34 Degrees.  SENCO does not mark theirs, don't buy them.