Piece of ironmongery, however flimsy, lasts for long time (4,5)

I believe the answer is:

butt hinge

I'm a little stuck... Click here to teach me more about this clue!

'piece of ironmongery' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I can't see?

'however flimsy lasts for long time' is the wordplay.
'however' becomes 'but' (I've seen this in another clue).
'flimsy' becomes 'thin' (similar in meaning).
'lasts for' says to take the final letters (I've seen 'last for' mean this).
The final letters of 'long time' are 'ge'.
'but'+'thin'+'ge'='BUTT HINGE'

Can you help me to learn more?

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.