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looking for a special type of screw with an hole at the bottom for a pin to lock the screw.

what is the name for that screw? and where can i get it?

i what to lock the screw that it won't turn. 

Picture of looking for a special type of screw with an hole at the bottom for a pin to lock the screw.
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Re-design6 years ago
Look for a "safety screw" or bolt. Used a lot in race cars, planes. Anywhere you want to lock it. I make my own usually.
ComixDude (author) 6 years ago
thank you all for the kind answers! :)
caarntedd6 years ago
I've made these before by drilling a hole in the bolt or screw.
acidbass6 years ago
check IKEA they have crazy unusual hardware like this all the time.
And some of the weirdest chairs...
i know right they are kinda cool though
rsmith16 years ago
bolts like that take a castellated nut, which has grooves in the top, so you can put a pin through the hole in the bolt and the in lies in a groove on the top of the nut...I've seen them on suspension parts in cars -- near the wheel hub at the end of the axle -- you have to take them off if you are changing an axle or the CV joint between the axle and the transmission.

RES
iceng6 years ago
Used in aircraft to be safety wired.
Keeps critical structural members from vibrating out and falling off in the air :-)
See an aircraft mechanic supply.

A
kelseymh6 years ago
I haven't seen those before. I'm used to retaining screws having an azimuthal groove in which you put a locking ring. However, some searching of McMaster-Carr eventually got me to try "threaded clevis", which may be what you're seeking. Good luck!