There might not be a lot of it, you might not be able to detect it, but I am sure there is enough of it in every healthy male flower. I am also hand pollenating squash. So far I have done half a dozen or so.

Well I was trying to pollinate with them even though I couldnt see any pollen. And my squash were dieing... they stopped dieing after I started pollinating with the zucchini blooms... just strange.

Really strange because I was wondering the exact same thing yesterday! There was a female flower open and the male flower was almost open so i pealed it open and to be surprise, there didnt seem to be any pollen!? Just the yellow clump in the middle. I went ahead to hand pollinate anyway but I dont think I succeeded because the fruit behind the female flower doesnt look any bigger today... this isnt my first time hand pollinating but ive never come across a male with no pollen! Hoping things will get better next round!