Screw in Hydra HMS mount

[Hofstadter]

Does anybody know what type of screw this is for the hydra mount. Mums got one for her tank and it flew off somewhere, didnt get a straight answer out of AI

 

[Aquavaj]

Beveled flat head screw that's about 1/2" long. There's a washer and nut. Nut can't be too thick or wide or it won't fit into the slot on the rail.

If the customer service of AI is anything like Kessil, they'd send you a set for free. You can probably find something will work at the local hardware store though.

 

[Hofstadter]

I did but they told me to contact the australian wholesaler, they only deal with lfs