A thin plate for the protection of personnel fitted over bolt or rivet heads to act as a screen to prevent the heads flying about when the structure is subjected to impact.
Icangci elibhityileyo lokukhusela abasebenzi efakelwe phezu kweentloko zezikhonkwane esebenza njengesikhuseli ukukhusela iintloko ezo zingabhabhi xa xa isakhiwo senqanawe sinokungqubana.