Flange Nut
A nut is a fixing with an internal thread whose function is to fasten two or more components together with a similar externally thread bolt or screw. Nuts are generally made from steel and have a hexagonal head to tighten it with a spanner. The two most common nuts used on Land Rover's are plain nuts or nyloc nuts with a nylon insert that prevents the nut from working its way loose.
EQUIVALENT TO PART NUMBER(S): STC3109