I used these to install cedar clapboards in my home. I had a medium sized property with water damage that the previous owner didn't repair. Since a few shingles were rotten, I had to replace them with new ones. I used these fasteners and a BOSTITCH N66 Coil Siding Nailer. They worked flawlessly. No problems with jamming or with the nails themselves. The ring bar provides a super strong fixation. And since they're rust-free, I don't have to worry about them seeping into the cedar. They also come in a plastic tub for easy storage. Hooray! BOSTITCH N66C-1 1-1/4" to 2-1/2" nailer for aluminum body roll fairings