Washer

Clamping disks according to DIN 6796 are Braced spring elements in the form of a cup spring whose locking effect solely on frictional connection based. They are intended to counteract any loosening of the screw connections , such as by setting amounts, by maintaining a sufficiently high preload in the connection by means of spring forces . They are therefore particularly suitable for short screws that are predominantly axially loaded. They do not offer any effective protection against loosening under changing transverse loads.

Spring washers have been specially developed for high-strength screws in strength classes 8.8 to 10.9 according to DIN ISO 898 Part 1. It represents a purely force-fit securing in the form of a disc spring. The clamping force of these washers has been adapted to screws of strength class 8.8. Disc springs according to DIN 2093 are much softer and not suitable for this task.

Spring washers for screws with nominal sizes M2 to M30 are available, in stock with a bare and galvanized surface made of spring steel in accordance with DIN EN 10132-4, such as C 60. Spring washers are also made from corrosion-resistant and heat-resistant materials to order.