The O.S. Engine OS79870050 blind nut M5 set is supplied as ten units to give multiple captive M5 thread points where backside access is restricted. These blind nuts help prevent thread stripping in thin sheet materials and provide a secure female thread for engine mounts and chassis plates in scale RC models.
Installation involves inserting the blind nut into the prepared aperture until the flange contacts the part surface, then tightening an M5 bolt to pull the nut into place. Because these are for confined mountings, verify the hole diameter and panel depth before assembly to ensure the nut seats properly and the bolt engages the M5 thread cleanly.
For routine maintenance and setup work, these blind nuts make removal and refit of components simpler and more reliable by providing a permanent threaded anchor. Choose bolt lengths appropriate to the material thickness to avoid either insufficient engagement or bottoming out.
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