Screws are common fasteners in daily life. They can be divided into various types depending on the shape of the head. Countersunk screws and cross-slot screws are common screws. Countersunk screws are large and small and are tapered. The head of the Phillips Pan head screw is oblate. The two types of screws are not only different in shape, but also have a certain gap in use. The main differences are as follows:
1. The countersunk screws are subjected to a greater load than the Phillips pan head screws.
2. Countersunk head screws are often used for fasteners of mechanical parts and mold stencils; and pan-head screws are often used for the fastening of mechanical covers and cases or covers or parts of household appliances.
3. The top of the countersunk head screw is flat; the top of the pan head screw is spherical.
4. The tool used for fastening the Phillips Pan head screw is a screw, which is often referred to as a screwdriver; the tool used for fastening the countersunk head screw is an Allen key.
5. The cross-sectional image of the head of the pan head screw is semi-circular; the cross-sectional image of the head of the countersunk head screw is a trapezoid