Brass lock l:11cm H:14cm

1 Brass lock 

Length:11cm  Height:14cm

The most practical nails to fix it are: https://boutique.la-malle-en-coin.com/fr/accueil/index/clous-et-rivets-nails/1-clou-laitonne-cbl27-8-detail.html

you can :

either cold rivet them https://youtu.be/s9duH9HwmUs

either return them to the wood https://youtu.be/StrGTFbn8eI