To assemble the butterfly knife successfully, you will need the following components:

x2 Inner Pivot Screws (Pins): These pins serve as the central pivot point for the handles. They function more like pins than traditional screws, allowing the handles to rotate freely. Please make sure to have two of these pivot pins.

x2 Outer Pivot Screws(pins): These pins are used to secure the handles and provide stability to the butterfly knife. You will need two of these screws.

so basically a total of four of these Pivot Screws(pins)

x1 Blade Edge: This is the central component of the knife, providing the cutting edge. Ensure you have one Blade Edge.

x2 Handles: These are the gripping points for the knife. The handles provide a secure hold while using the butterfly knife. Make sure you have two handles.

Once you have gathered all the necessary components, follow the assembly process. Insert the inner pivot pins into the handles, allowing them to rotate freely. Attach the blade edge to the handles using the outer pivot screws, ensuring a stable connection.

Remember to take your time during the assembly process and ensure all the components are fitted securely.