Analysis of the difference between Phillips pan head screws and countersunk head screws
Dec 02,2022 /
BY DEVELOPERS
It can be distinguished from the appearance: the head is oblate, with a cross groove in the middle, which can be tightened with a cross screwdriver; it is an inverted cone shape with a large top and a small bottom, and the screw head of the countersunk screw sinks inside the workpiece instead of The protruding surface, the surface of the countersunk head screw is flat after tightening, and the countersunk head screw can have a cross groove or a slot.
The cross-sectional image of the head of the
pan head screw is a semicircle; the cross-sectional image of the head of the countersunk screw is a trapezoid. The top of the countersunk head screw is flat; the top of the pan head screw is spherical. The tool used for fastening the cross-recessed pan head screw is of the same type, that is, the screwdriver that people often say; the tool used for fastening the countersunk head screw is an inner hexagonal wrench.
The load on the countersunk head screw in the fastened state is larger than that on the cross pan head screw. Countersunk head screws are often used for fasteners of mechanical parts and mold templates; while pan head screws are usually used for fastening of mechanical chassis and casings or covers or parts of household appliances.
The difference between the pan head and the half round head of the slotted countersunk head screw is:
The semicircular head means that the screw head is part of the ball, and the pan head means that the screw head has a straight or almost straight section.
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