Original equipment Subaru cam pulley bolt for all EJ motor NON-AVCS cam pulleys.
Note that there are two different types of this NON-AVCS bolt. One is just for fixed cams. We'll call that the Standard type. It's got a hex-shaped Allen head type of hole in the center, and you'll use a 10mm Allen driver/hex key to install it.
The other type is for i-AVLS (intelligent Active Valve Lift System) and has a 17mm hex head that uses a standard 17mm socket.
Sold individually. Specify STANDARD type (with the Allen head style) or AVLS type (with a hex head).