50 off 3/16" x 7/16" round headed rivets identical to Land rover p/n 300783. These are suitable for attaching galvanised capping to the body tub.
Land Rover Solid Aluminium Rivet Kit 3/16" & Snap Punch Tool for Series 1 2 2a 3
Land Rover Solid Aluminium Capping Rivets 3/16 Dia 1/2 Long x50 Series 300784
Land Rover Rivets Solid Aluminium 3/16 (4.8mm) 3/8 Long Series 1 2 3 302222 x50
RH & LH Full Rear Body Tub & Light Capping kit for Land Rover Defender 90 94-16
BRAND NEW RH & LH Rear Body Tub Cappings for Land Rover Defender 90 83-16
RH & LH Full Rear Body Tub Capping Kit & Seals Kit for Land Rover Defender 90