Product introduction

Self-tapping screws are self-threading screws that can be easily screwed in without the need for pre-machined screw holes.

Self-tapping screws are a special type of fastener. Their greatest feature is that they can tap threads on the material being consolidated by themselves, thus achieving a tight connection. The following is a detailed analysis of self-tapping screws:

1. ‌Definition and Working Principle‌

Self-tapping screws, also known as Self-tapping Screws in English, are screws with a drill bit. They are constructed using special power tools and can complete the operations of drilling, tapping, fixing and locking at one time. Its working principle is to rely on its own threads to "tap, drill, squeeze and press" the corresponding threads on the consolidated material, thereby achieving a tight fit.

2. Features and Advantages

No pre-drilling required: The pointed head design of self-tapping screws enables them to be screwed directly into the material without pre-drilling or tapping.

Easy installation: The installation can be completed quickly using power tools, saving time and cost.

Wide range of application: Mainly used for non-metallic materials (such as wood, plastic) or softer metal materials (such as thin steel plates).

Strong corrosion resistance: Commonly used in outdoor occasions, with strong corrosion resistance.

3. Difference from ordinary screws

Head design: Self-tapping screws are usually pointed, while ordinary screws are flat.

Thread characteristics: Self-tapping screws have a larger pitch and can tap out threads by themselves, while ordinary screws need to be pre-tapped.

Use scenarios: Self-tapping screws are suitable for non-metallic or softer metals, while ordinary screws are mainly used for hard materials.

4. Classification and Application Self-tapping screws can be divided into many types according to the shape of the head and the purpose, such as pan head self-tapping screws, countersunk head self-tapping screws, self-drilling self-tapping screws, etc. Its application scenarios include: Construction field: used for connecting thin plates such as wall panels and color steel plates. Home decoration: commonly used for fixing electrical housings, wooden boards, and plastic parts. Industrial manufacturing: suitable for connecting and fastening thin metal plates.