M16 (16mm) x 50mm Tow Bar Bolts - Trailer - Caravan - Towing Hitch - PAIR
These are suitable for holding on your drawbar, towing eye. M16 16mm Tow Bar Bolts, Nuts and Spring Steel Washers. through the nuts - the thread pitch is 2mm - so 4mm for two Nuts. Nut thickness is 13mm and washer thickness 1.5mm.