[calvarez]

The screws on this bike, like most Asian bikes, are not real Philips. They are JIS. When you use a Philips driver on JIS screws, it tends to chew them up as only a tiny bit of the driver engages the actual sides of the cuts in the screw. You can always use JIS drivers in Philips however. I picked up a set of JIS hand screwdrivers and a set of bits to go into my impact driver. The difference in usability, once you experience it, will shock you.

The Allen bolts are not perfectly sized. I keep a ton of hex keys around that have collected over time. I try different ones to see what fits best. Interestingly enough the Harbor Freight Allen key set fits most of the CSC bolts rather well. My Craftsman are less reliable for fit on this bike.