What are these called please.

[Alymar]

Does anyone know what these are called and where I can buy them from, It is a bracket that swivels 90 degrees to lock back a board. Thanks in advance.

 

[Lenny HB]

It's a Turnbuckle loads of different types so you should be able to get one to do the job even if not quite the same. search eBay.

 

[two]

Turn Button, perhaps?

 

[Clickem]

Not a Turn Buckle, which has a left and a righthand thread so that when the centre is turned it tightens or slackens a cable or wire

 

[MikeD]

Maybe something like this of Ebay might suffice.

https://rover.ebay.com/rover/1/710-...0001&campid=5338547443&icep_item=232342089260

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