What do you call??

[Dman2]

The Half turn sprung twist type screws for fastening panels on
Usually slot head
Push and turn to lock/unlock

Cheers

 

[Clive]

The Half turn sprung twist type screws for fastening panels on
Usually slot head
Push and turn to lock/unlock

Cheers

deutz. Fasteners ( not sure it’s spelt like that though !)

 

[Dman2]

deutz. ( not sure it’s spelt like that though !)

Thats a tractor

 

[Clive]

Thats a tractor

Not sure on spelling but that’s how it’s pronounced

 

[Dman2]

Thanks @Clive
Led me to the right place

 

[pycoed]

DZUS fasteners

 

[Lazy Sod]

Commonly used on aircraft engine cowlings etc. Sometimes seen with a built in handle, negating the need for a screwdriver.