1. Basic definition of countersunk self-tapping screws and regular screws
Countersunk self-tapping screws: The threaded part of this type of screw can easily penetrate materials such as metal or wood, and the head is designed to be countersunk, which can be better flush with the surface and avoid protruding parts.
Regular screws: Common standard screws, the head shape is usually simpler, and may require pre-drilling or the use of nuts.
2. Differences in head design
Countersunk design: Suitable for scenes where the screw head needs to be completely flush with the surface, so as to avoid protruding parts affecting beauty or safety.
Regular screw head: Usually has hexagonal, round or other common designs, but often a part of the screw head is exposed, which may affect appearance or practicality.
3. Self-tapping and installation method
Countersunk self-tapping screws: With self-tapping ability, no pre-drilling is required, and it can quickly produce threads in a variety of materials, providing stronger grip.
Regular screws: Most ordinary screws need to be drilled before installation, which adds extra workload and time.
4. Applicable scenarios
Countersunk tapping screws: Suitable for scenarios that require a flat surface (such as furniture manufacturing, building exterior decoration, etc.), and projects that have high requirements for installation speed and convenience.
Ordinary screws: Suitable for occasions that do not require high surface appearance or have strong requirements for thread fixation.
5. Durability and stability
Countersunk tapping screws: Because they can better blend with the surface, they usually provide higher stability and durability.
Ordinary screws: Although they have strong fixing force, they may cause unnecessary wear or damage due to the protruding screw head.
6. Cost and selection
Countersunk tapping screws: Because of their special design and function, they are usually slightly more expensive, but they are more advantageous in specific applications.
Ordinary screws: They are low in cost and suitable for simple projects that do not require a fine appearance.
7. Summary and suggestions
Summarize the advantages and disadvantages of the two, and give selection suggestions based on the needs of specific projects. For example, for projects that focus on appearance, stable structure and fast installation speed, countersunk tapping screws may be more suitable. For scenarios that are more sensitive to cost and less concerned about appearance, ordinary screws will be a good choice.
