View Full Version : looking for drilled square head set screws

02-03-2015, 12:13 PM
We are looking for some 1/4" square headed set screws that are drilled for safety wire. Anyone know of a supplier? I can't find them, I know they are out there, our ordering dept can't remember where they got them last time!

02-03-2015, 12:42 PM
Didn't find square head set or grub screws at McMasterCarr. MSC has square head, but not drilled. Maybe an aircraft hardware/fastener supply?

Frank K
02-03-2015, 01:03 PM
Well a quick Google search found these guys:


Don't know if its what you need but maybe a quick phone call?

02-03-2015, 01:30 PM
Ya, I found them also. They are looking into it. Nothing so far though.

02-03-2015, 01:42 PM
Ya can't drill em your self? Farm it out. I might be interested.

02-03-2015, 01:48 PM
they are hardened, for what they cost, i wouldn't waste my time. much cheaper to buy a hundred of the different sizes we need, if I can find them. Not interested in stepping over dollars to pick up dimes :)

02-03-2015, 05:58 PM
Have you tried http://www.aircraftspruce.com/

02-03-2015, 08:14 PM
These folks list 40 pages of square head set screws, perhaps they have them or know where to get them: http://www.aftfasteners.com/64m8/fasteners/set-screws/square-head-set-screws.html

And these folks manufacture all kinds of set screws including square head, perhaps they can be of help: http://ezsockets.com/

And http://set-screws.com/index.htm is yet another supplier of square head set screws who may be able to help.

02-04-2015, 11:21 AM
thanks for the responses. Jennifer at Kimball came through for us :) 100 1/4-20 x 5/8 long, under $11. can't touch a drill bit for that.