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If you have ordered a solderless pre-wired kit you will have received a wiring diagram.
The diagram will have marked "Pickup Ground" and "Hot" connections. The pickup ground on Strats and Teles is usually the black wire and the hot is usually white or yellow. Depending on the kit there is either one ground, in which case twist the grounds together, or a ground for each pickup. The wires go into the hole in the top of the terminal block and are held in place by tightening the screw on the side of the block. You will need to push back or other to expose the wire.
The hot wires each have their own location in the terminal block. Locate the correct wire and as before put into the top and tighten the screw.
If your kit has connections for the socket you will have been supplied with a wired socket and as above locate the ground, black and hot white, and make the connections.
If your kit has a connection for this, trace the wire from the claw and make the connection to the terminal block that is marked on the diagram for the claw.