lock screw on shell?

If you google "security screw" and select the image results you will see the many types. You can find those tips or drivers with handles at the hardware store or the home store. A hardware store will be more helpful in trying to match it.

The backup is that you will have to order it online.

That definitely stinks. I guess they didn't want the average Engineer-Joe getting in there.

I had to remove discs that the grandkids jammed into a PS-3 game console about 7 months ago. I was faced with the same dilemma for a case screw.

Upon finding a youtube diy for the sony security screw the solution was simple. I used a thin blade screw driver that fit between the points of the hex and behind the pin. This is one of those hobby/jeweler type size. I was able to get enough torque to break it loose and get it out. This was after ordering the correct tip.

So, if its a torx or hex head socket type screw with a pin in the center, give that a try.

Here is a neat trick to get past those screws.....take a small flat screwdriver and wedge it between the points, above the center pin.  Your screwdriver should then be able to turn it.

(dang - should of read the whole thread before replying)

That's funny! Laughing with you, not at you. Been there. I hope the gremlins leave your layout soon.

Stop drinking in the basement Joe G

Screws that have the little post right in the middle, (usually Torx screws), are referred to as "Tamper-proof". You can buy special 1/4" bits that fit into magnetic screwdrivers or even use a 1/4" hex socket. You can get a complete set from size T10 up to T30 complete with a 1/4" magnetic socket at NAPA Auto Parts. Cheap!

BTW, there are other tamper-proof screws that require a "butter-fly" screwdriver. Also there are the "square-drive" type. Screwdrivers, sockets and bits are readily available.

quote:

BTW, there are other tamper-proof screws that require a "butter-fly" screwdriver. Also there are the "square-drive" type. Screwdrivers, sockets and bits are readily available.

I have seen (and serviced) postwar Lionel 1044 transformers with clutch head case screws. They look somewhat like a butterfly.

Here is a web site with some information on various screw heads.

Nope.

It must have been a screw that was stuck into the hole backwards. When you look down at the threaded end, that's what I saw sticking out. I put a Phillips down in the hole and it wouldn't turn. The screw was stuck so good that it resisted. It must have fell out when I inverted the engine after giving up.

  How it made it from the factory, to a dealer, sat on the shelf for four years, shipped to me, ran around the yard a dozen times, and still remained stuck in that hole,..........

The problem with most of these bit sets is they don't reach down the long holes in the transformers to get to these screws.