1 x used Tom Tom mount with fixing screws and washers has a19mm hole,1 X used Peace DC-87 Tom Tom mount with fixing screws, nuts and backplate. Has a 23mm hole, New Old Stock 8mmx1.25 metric thread T nut total length 42mm And 63 X Nut Box / Lug mounting METRIC 4mm x 0.7 thread length 8mm then has 2or 3mm that’s not threaded .Thank you for looking.