propeller mount

Hi guys I'm a noob to quads and bought a toy grade just to get me started. The XK had great reviews and I ordered one from ebay, took a month to arrive from China and against my better judgement took it out in to the garden for a brief flight when the wind had dropped enough. Cut a long story...

I salvaged 4 Tarot 4006 620 KV motors from a crash and using them in a new quadcopter I'm building. But I'm missing the round mounting cap and screws that secure the propeller to the motor: I need four of them with the screws