Fastening problems with dynamically highly stressed threaded joints have lead to the development of the FS®-all-steel lock-nut. It has a flexible and completely threaded locking element which is fitted into the nut body.
As opposed to competitors’ lock-nuts, the FS®-all-steel lock-nut can be used universally. This is due to the fact that the design combines all elements required for a safe threaded connection, such as re-usability, heat resistance, corrosion resistance, protection of the counter thread and narrow tolerance of the locking torque.
The FS®-all-steel lock-nut can be reused many times without significant loss of its locking capability and exceeds, after 15 times of tightening and loosening of the nuts, the values given in DIN EN ISO 2320.
Flaig + Hommel is recognized, worldwide, as a manufacturer of the FS®-all-steel-locknuts and, since the 1950s, as a reliable and innovative partner of the automotive and rolling stock industries.
The tightening torque of the screw with FS® All-Steel Lock-Nut increases according to the adjusted clamping torque. The clamping torque of FS® All-Steel Lock-Nut is therefore added to the tightening torque of your fastening application.
The FS®-All-Steel Lock-Nut are resistant to high temperatures and corrosion due to F+H’s use of modern technologies, resulting in better reliability than galvanizing. These techniques have been accomplished without inducing hydrogen embrittlement.
We look forward to your product-related inquiry. Our sales department will check your request and contact you promptly.