1. The load of the countersunk head screw in the tightened state is greater than that of the cross pan head screw.
2, countersunk head screws are often used for fasteners of mechanical parts and mold templates; while pan head screws are usually used for fastening mechanical chassis and casings or covering parts or parts of household appliances.
3. The upper surface of the countersunk screw is flat; the upper surface of the pan-head screw is spherical.
4. The tools used for tightening cross recessed pan head screws are screws, which are commonly referred to as screwdrivers; the tools used for tightening countersunk head screws are allen wrenches.
5. The cross-sectional image of the head of the pan-head screw is semicircular; the cross-sectional image of the head of the countersunk screw is a trapezoid.
