B квадрат вдлъбнати винт за подслушване на главата

The head of countersunk head screws is designed to be low enough to sink into the surface of the mounting material and is usually used in situations where a smooth appearance is required.

Xiaoguo B square recessed countersunk head tapping screw Parameter (Specification)

Xiaoguo B square recessed countersunk head tapping screw Feature And Application

Self-tapping screw: Self-tapping screw is a screw that can self-tap in a specific material (such as wood, thin metal sheet, etc.).

Xiaoguo B square recessed countersunk head tapping screw Details

B tooth: This may refer to the thread type or specification of the screw, but "B tooth" is not a standard thread type name. It may refer to a specific, non-standard, or manufacturer-defined thread specification. Square groove: This refers to the groove of the screw head, and the square groove (also known as the cross groove) is a common groove for use with a Phillips screwdriver.