Thread Screws  Manufacturers, Traders, Suppliers

Our portfolio is already vast with its more than 50,000 standard fasteners- good to know that our online catalogue and our employees‘ know-how keep the overview. But since norms cannot meet all requirements, our programme of products goes beyond DIN data sheets and factory recommendations: special productions according to drawings- from the special type of screws to the plate bending part- complete our offer. We have our own innovations in our programme of products as well. One of our specialties are magnetic plug systems.
They collect the abrasion in gearbox cases or serve as a specially constructed fuel level plunger in wind power stations. In addition we have been involved in further developments of suspension arrangements in the field of mining and tunnel construction. Besides we offer extended screws for which there was a special annex to the DIN norms for the open line construction. A cleverly devised and software-supported stock-keeping and assignment sale make sure that our products are also delivered to you as soon as possible and in a perfectly compiled manner.

• Screws, nuts, washers , springs, rings, bolts ...
• made of stainless steel, steel and non-ferrous metals
• Standard and standard parts
• DIN, EN, ISO, L(ederer) and other standards
• Special parts and special materials
• Industry assortments for solar and railroad

• Process cost reduction up to 50%
• Permanent availability and guaranteed quality
• Reduced capital commitment through inventory reduction
• Process-optimized logistics, e.g. Kanban, consignment, etc.

Our years of experience are the basis for offering you a selection of over 5,000 different screws and nuts. For 80 years we have continuously expanded our specific expertise in the field of screws and nuts, added to our product range and specialised more and more in the complex specialty screw assortment. In the process, we particularly emphasise customer-oriented service and high ISO certified quality standards.

The insert nut is a product that embeds an insert with internal threads and knurled or other patterns on the outside in a plastic or other alloy product (mainly used on plastic products) to form an effective thread on the main product .

All kinds of special inserts for thermoplastic and thermosetting plastic parts are suitable for different application requirements, including hot melt and ultrasonic inserts, in-mold injection inserts and cold press inserts.
Cold pressed series
Cold-pressed inserts are suitable for thermoplastics with medium or low hardness. After the plastic parts are formed, they are directly cold-pressed into the prefabricated plastic holes.
The outstanding advantages of cold press inserts are convenient implantation and high efficiency, but at the expense of torsion and tensile performance. Some cold-pressed inserts can also be implanted by ultrasonic or hot-melt technology to obtain better torque and tensile performance.
Hot melt and ultrasonic series
Hot melt is to press the copper insert into the plastic matrix after heating the product, which can make the product heat quickly and speed up the work efficiency. The heated copper insert can also quickly conduct heat to the plastic part, so that the periphery of the plastic hole becomes soft. So as to quickly press the product into the hole. Due to the embossing process on the outer diameter of the insert, it forms a certain friction and bite force with the copper insert after forming, which can be fixed in the inside so that it cannot fall off. Has a certain torsion and tension.
In-mold injection series
In-mold injection molding inserts are suitable for all plastic materials. Before plastic injection, insert the inserts into the mold inserts and fix them before injecting glue. In-mold injection molding inserts are generally designed with straight patterns, so the cost of the inserts is relatively lower. Forming directly in the mold can obtain the best torque and tensile performance, and allows a smaller wall thickness. The disadvantage is low efficiency.

Insert nuts are widely used in all walks of life, and are commonly used in various plastic casings such as the automotive industry, medical equipment, consumer electronics, mobile phones, and computers.