|The MGA With An Attitude
FOG LAMP Mounting Bracket, Clamp-on, No Drilling -- AT-110E
These are No Drill, Clamp Bumper, Fog/Driving Light Mounts. The hole for light mounting bolt is 1/2" diameter. The clamps can be adjusted for angle and depth (somewhat) to place the light right where you want it.
Seen in the Buy-Sell-Trade forum of the MG Experience web site in November 2016. Original source is unknown.