Replacement grip panel screws for any SP marker, or other marker using 6-32 threaded grip screw holes. These are available in silver or black, in varied lengths. However, the length doesn't matter when installing these on an Impulse (since there isn't any sensitive circuitry under the screw holes).
These screws use a phillips-head screwdriver to remove and install.

Replacement Impulse screw that holds the frame and circuit housing to the body. These screws have a larger head than the stock screws, to allow for a larger allen wrench hex; this larger head makes these screws virtually impossible to strip.
Here is a picture of the screw installed on a marker.

Replacement Vision eye ribbon screw; this screw is used on a Shocker SFT, Impulse, and Nerve. This will only work with the stock Impulse eye and will not work with the WAS Equalizer eye.

Replacement screws that hold the frame to the bottom of the circuit housing. Note this is the same as the grip panel screws.

This screw holds the Impulse main circuit board in place within the circuit housing.