Security screws

[frahkn]

I would be grateful for help with this, though it's not immediately boat related.

 

I have a Triton pump which I need to disassemble. 

 

It has machine screws with a torx type head but with only three lobes. I had an extractor which fit (from a set) but was too cheap and snapped. I can't find a replacement but might if I knew the name of the fastening. Anyone know what these are called?

 

Sorry, I don't have a photo.

[Tom Morgan]

They're called Tri-Point or Tri-Wing screws and screwdrivers.

[frahkn]

Cheers, Tom.

[WotEver]

Screwfix do a set of ‘security’ bits which work where you have the access for a bit holder. 

 

https://www.screwfix.com/p/mixed-mixed-security-bit-set-33-pieces/2840v?_requestid=425401