i talked to this tool place and he said he can get it but he dude that he orders it from comes every month..... and i cant wait that long

basically its a allen but 5 sides inside of the traditional 6 sided one

thanks
tony

 

what size? that seems really odd to me.

 

Seems like it would be a tamper proof type fastener...look for security bolts and such, I bet McMaster has them.

 

its a brake master cyclnder plug

 

They are called penta-drive I found this site after a quick search

http://www.brycefastener.com/driverbits.htm