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What is a "Rivnut"?


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A Rivnut is a cross between a rivet and a nut. By inserting a Rivnut into, say, your chassis, you end up with a captive nut in your chassis that you can then bolt another object onto.

They are used in various places on the Westfield chassis, for example:-

To hold the scuttle on

To hold the nosecone on

To attach the fuel tank straps

To attach the inspection covers on the transmission tunnel

To attach brake pipe 'T' connectors

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Rivnuts are like rivets, but with a threaded centre, used where you want to use a bolt or set screw to secure something but where you are unable to fit a normal nut, like within a chassis rail for example, or any other area that is difficult to access with a spanner and where you'd like to have a piece that is easily removable or dismantlable. You can use them in metal or fibreglass, and they are made in both steel and aluminium, most commonly in M4, M5 and M6 sizes. I have never seen imperial sized rivnuts.

You need a special type of rivet gun to fit them. They are easily and relatively cheaply available from most good tool shops.

The most recent discussion about them is here. This thread plenty of links which you should take the time to follow.

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