The cheap black ones I got off Amazon for my BTS bumper were the same way. A little dab of silicone and they were just fineI just received the 3/8" Everbuilt chrome plugs from HD and they do not fit. The press-fit piece that keeps the plug in position is too loose for the hole. I will try a larger size and report back what fits. The product specs for the plugs do not show the dimensions for the piece that actually fits into the hole, so it's a little trial & error.