Can a 74HC595 shift in using SPI ?
thanks:D
What can I use to shift in using SPI ?
Im using a arduino uno.
Kind of, but not really 
You can just do regular serial I think.
The 74HC595 is a 8-Bit Serial-In, Parallel-Out Shift. SPI = Serial Peripheral Interface and uses MOSI, MISO, clock and data pins.
You can try it with SPI but you will need to modify it to do some bit-banging. There is sample code on the web for most microcontrollers so this should not be a problem.
You can actually look up code for your platform online. Like I said, it will work you just need to fiddle with it. If you could elaborate on what microcontroller you are using I might be able to source appropriate code.