Frangibolt^® Locknuts

The MS21043 series locknuts shown on this page have been widely used with the Frangibolt release mechanism.  They offer the following key features: 

• They are made from high strength A286 stainless steel with a minimum tensile strength of 125 ksi.
• They are silver plated to reduce friction and minimize galling.
• They have a locking feature in the form of a deformity in the thread. 

Note that not all Frangibolt designs require a nut as many thread directly into a flange or structure.  In this case, it is important that the threaded connection be designed to withstand the tensile strength of the notched Frangibolt (See Frangibolt Fasteners)