teckentrup SLI

The teckentrup locking edge washer is known worldwide for its reliability and has undergone continuous further development to become today's NSK (New Locking Edge Washer). The lock washer was designed in 1990 as a locking element to prevent automatic loosening. Over the course of time, the NSK has become a multifunctional locking element that increases the flexibility of the screw connection and provides comprehensive state-of-the-art protection against automatic loosening.

The NSK screw locking system can be used almost universally. Areas of application include both demanding mechanical and electrical screw connections across the entire spectrum of strength classes from 5.6 to 12.9 or A70 A80 in steel and stainless steel as well as other materials on request.

Quality and safety

The safety and functionality of our products are our top priority. Our product testing is not only based on common standards, but goes beyond them. The tests take place in our own test laboratory as well as at independent institutes and technical universities.

Consulting and innovation

Starting with screw locking elements for mechanical bolting, stainless steel or slotted hole connections, and high-temperature solutions, we are already working on the screw locking solutions of the future. Based on this experience and the combination of product and forming process development, we are able to offer you holistic consulting with the goal of a unique product solution.

Partnerships and availability

We are development partners of our customers and cooperate in this context on joint research projects with universities. We also participate in guideline work on a national and international level. Due to our cooperation with the leading trading companies for fasteners, we can offer you the availability of our products both nationally and internationally.