Self Tap Screws-Mush-Phillips-4.8 X 19mm-Black. Introducing the Champion Handy Pack Self Tap Washer Face in Black (10G x 3/4" CST - BH756). These self-tap screws feature a Mush-Phillips head, measuring 4.8 x 19mm. Ideal for various applications, they come in a convenient and efficient handy pack for your convenience.