Metal on Metal Shackle wear

[PeeBee]

I have attached an image that was circulated today at my old workplace. The shackle and eyebolt were used to couple a 240v overhead light in a plant. Over time, with constant movement, no doubt grit and moisture as well, significant wear resulted. i raise this more as a check for all those shackles and even winch hooks that are fastened to bullbars or left in place 100% of the time simply because you know they are there or perhaps can't be bothered storing them correctly. I realise the intensity of the loading and constant contact and vibration are likely more severe than our 4wd situation, but it might be a good time to check this items and perhaps review how they are stored. I for one have connections in both these categories, which I will be changing. The safety report released indicates this wear took place over a 2-3 yr period. What is interesting for me is the absence of wear on the SS 304 eyebolt yet the alloy steel shackle and pin are severely worn.
Shackles.png