mutterinlägg

Mutterinlägg, also known as threaded inserts, are mechanical fasteners used to create a threaded hole in a material that is too soft or weak to tap directly. They are commonly employed in plastics, wood, composites, and soft metals. The primary function of a mutterinlägg is to provide a durable and reliable thread that can withstand repeated assembly and disassembly without stripping or degrading the surrounding material.

There are several types of mutterinlägg, each designed for specific applications and materials. For instance, some are designed to be pressed into a pre-drilled hole, while others require a slightly oversized hole for a tight interference fit. Heat staking or ultrasonic welding are also methods used to permanently install certain types of mutterinlägg into plastic components. Screw-in types, which have external threads, are screwed into a drilled or molded hole.

The benefits of using mutterinlägg include increased thread strength, improved load-bearing capacity, and the ability to repair damaged threads. They ensure that a component can be securely fastened multiple times without compromising the integrity of the threaded connection. This makes them a valuable component in manufacturing, particularly in industries such as automotive, electronics, and consumer goods, where reliable assembly is critical. The selection of the appropriate mutterinlägg depends on factors like the parent material, required thread size, load requirements, and the installation method available.