This is an authentic Cartier Panthere clasp attachment screw used as the hinge screw for the clasp on some Cartier Panthere watch models. It is made from steel and marked with Cartier part number 00831893.
I have given you clear images of this screw from every angle. The screw in the photos is the exact one you will receive
If you are not sure if this will fit your watch or if you have any other questions, feel free to email me at Sales@TheWatchLink.co.uk . I'm happy to help!