Locking Type Threaded Insert M8 1/2 3/4 Key Locking Sleeve Insert

Introduction

Bolt screw sleeve, English is the key lock thread insert, translated into Chinese is the screw lock sleeve, at the age of 00, it was directly developed by the American Kane company. Since its development, it has gone deep into aerospace, aviation and railway machinery. , Electronics and electrical engineering and many different fields and industries. The main feature of the product is that there are 2-4 pre-locking keys on the external thread.

Application

1. Quickly and effectively repair damaged threads on various materials.

2. Enhance the thread strength on light materials, such as large and medium-sized non-ferrous metal castings, die castings and ferrous metal base materials, which are used as screw holes that are often screwed in and out.

3. It is especially suitable for the environment where the high-strength internal thread is penetrated by vibration, with strong anti-vibration and anti-drawing ability. It has higher strength than the commonly used wire thread inserts, and is connected to the substrate in the environment, and will not be separated from the substrate under impact or working.

4. Wrong holes in clothes, avoiding reprocessing of wrong pieces.

Advantages

The advantages of the plug screw sleeve improve the connection conditions, increase the bearing capacity and fatigue strength of the threaded connection: the use of the type screw sleeve can eliminate the pitch and thread deviation between the screw and the screw hole, so that the load is evenly distributed, thereby improving the thread connection Load capacity and fatigue strength. It can be used for the connection and fastening of hard, brittle and fragile materials such as ceramics, bakelite, and glass. Effectively prevent fragmentation. After using the bolt sleeve, under the same strength condition as the ordinary internal thread, a smaller size and higher strength screw can be selected, so that a large amount of material can be saved, weight and volume can be reduced.

Options

Installation method

1. Drilling hole: The drilling depth should be greater than the length of the bolt sleeve. Note that the size of the tapping drill is larger than the usual number.
2. Thread tapping: The size of the tapped thread should correspond to that of the external thread of the bolt sleeve.
3. Installation: Screw the bolt sleeve into the corresponding threaded hole, and require the bolt sleeve to be lower than the surface of the workpiece.
4. Lock key: Use a suitable tool to press the bolt fixing key of the bolt sleeve into the bottom hole.

Installation tool

Tools include: drill bit, wire tap, plug gauge.
Bolt screw sleeve drill bit: When drilling the threaded hole, the drill bit of the plug screw sleeve should be larger than the diameter of the internal thread hole of the plug screw sleeve and smaller than the diameter of the external thread of the plug screw sleeve.