KKV M7 7mm Self Tapping Thread Insert Blue Passivated For Reinforce

Product Specification

304 Stainless Steel Self Tapping Thread Insert For Reinforce

Introduction

1. the inside and outside of the self-tapping screw sleeve has tooth grain, embedded in plastic, aluminum alloy, cast iron, copper and other soft materials, can form a higher strength of the internal thread hole, self-tapping screw sleeve can also repair the damaged internal thread.
2. Self-tapping screw sleeve has self-tapping capability, so the base material need not be tapped in advance to save cost.
3. Large contact surface with finished products, strong tensile strength, lower strength materials can be used in product design.
4. For the female thread that has worn out or broken teeth, use the self-tapping screw sleeve to continue to use the same screw.
5, strong resistance to vibration, can prevent looseness.
6. There is no clearance with the base material, and the base material has good air tightness if it contains bubbles.
7, self-tapping screw sleeve installation is simple and rapid, only one assembly tool, low cost, almost no defect rate.
8. The tapping screw sleeve is generally made of carbon steel and stainless steel. Carbon steel can be plated with colored zinc, yellow zinc, blue and white zinc.

Parameter

Feature

1. Enhance connection strength and improve connection conditions. Low-strength materials such as aluminum and magnesium are selected for wire thread inserts, which can avoid slippage and wrong teeth, and obtain excellent connection performance.
2. Wear resistance. Used in frequently disassembled parts, it can greatly improve the service life of threads.
3. Increase the bearing surface. It is used in places where strong connection force is required and the diameter of the screw hole cannot be increased.
4. Anti-loosening. Especially used in the occasions where products such as spacecraft require a high insurance factor.
5. Easy to maintain. Install the damaged screw hole into the steel wire screw sleeve and continue to use it after repair to avoid the possibility of workpiece damage.

Installation method

Self-tapping screw sleeve installation method

1: When the number of installations is small, a simple installation method can be adopted. Specifically, the method of corresponding specification bolt + nut is adopted, and the self-tapping screw sleeve is fixed on the bolt of the corresponding model, and the nut of the same model is used Fix it to make the three into a whole, then use a wrench to screw the screw sleeve into the bottom hole, and then pull out the bolt.

2: When the number of installations is large, special self-tapping screw sleeve installation tools can be used, first install the self-tapping screw sleeve on the special tool, and screw the installed screw sleeve into the pre-made hole about a circle , After ensuring that the tool is perpendicular to the end face of the prefabricated hole, screw in the screw sleeve forcefully. When the end face of the self-tapping screw sleeve is about 0.2mm lower than the end face of the prefabricated hole, stop screwing in and screw out the special tool in the reverse direction. The end of the self-tapping screw sleeve installation tool is a hexagon head, which can be connected with a manual tapping wrench, or an electric or pneumatic tool.

Application 

It is widely used in aerospace components, locomotive, high-voltage electrical appliances, automotive power, wind power, nuclear power, communication and electrical industries. It is used in aluminum, magnesium, copper alloy, plastic, plexiglass, plywood, steel, cast steel and cast iron to make it more tough and firm