Fits my 2013 f150 FX4. The OEM nuts are only a year old (earlier ones have been replaced) and they swell and spin under the sheet metal cover. These grommets are strong and will not mar like OEM style. Socket size 7/8”. Don't know if it will fit an OEM tire jack - various sizes of OEM cleats and I don't use an OEM jack - I trust the HF in the bed box instead of that scissor jack. Anyway, my HF jack now has a separate breakaway linkage with 7/8" socket in it. Do yourself a favor and change your cleats before they break if you get stuck on the side of the road.