So I've got a 2x10 Ledger attached to a concrete wall. I have a double 2x10 joist that needs to connect to the ledger. I have a joist hanger for this but the installation requirements say to use 16d nails (which are typically 3 1/2" long) to connect to the ledger. How can I do that if the ledger is only 1 1/2" thick? Will the nail go into the concrete? Are there shorter nails?
Joist hangers resist loads in shear, not withdrawal. While a 16d is more common, full resistance is developed in a 2x.
Simpson Strong-Tie makes a short nail that is 1 1/2” long x 9 ga. diameter.
Oh, and be sure to order the nails treated (galvanized) or stainless steel based on the type of pressure treated ledger.
There are shorter nails, but there are also short screws available. I'd go with the screws every time. For example these are made by Simpson and fully approved for use with their hangers.
Note that the #10 screws are the correct size to replace 16d nails.