Standard round pan head with full and round shape and flat appearance, suitable for general conventional installation scenarios. Large stress-bearing area with even locking torque, not easy to slip and crack.
Square inner hole recess design with even force on four straight sides, no slipping dead angle of arc surface, tight bit clamping without shaking and deviation.Excellent anti-slip and anti-drop performance; high torque construction will not damage the screw head, and the recess remains intact without deformation after repeated disassembly.
After the screw is fully locked, the two side fins will be automatically sheared off without affecting plate fitting, realizing anti-crack reaming in early stage and flat installation in later stage, balancing practicability and appearance.