The O.S. Engine OS79870050 blind nut M5 set comes as ten pieces to give captive M5 threaded points where a through-bolt cannot be accessed from both sides. These blind nuts enable builders to add a dependable M5 female thread to thin panels, engine mount brackets, or chassis plates typical of scale RC models.
To fit, press the blind nut into the prepared hole so the flange bears on the component surface, then tighten an M5 bolt which pulls the nut into the panel and secures it. Because the components are designed for constrained mounting spots, measure hole diameter and panel depth beforehand to ensure the nut seats and the M5 bolt engages correctly.
In terms of serviceability, blind nuts provide a permanent threaded anchor that eases repeated removal and refit of engine mounts or bodywork. Select bolt lengths that suit the material thickness to avoid either bottoming out or insufficient thread engagement.
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