What type of screwdriver do you need to take this screw off. To describe the screw: its round on top and...?

Question

it also has 3 open slots on the top in a triangle location, and its flat in the middle. its not a phillipshead or flat.

Answer 1

This is the closest I could get to your description of a security (tamper proof) type screw...

http://www.tamperproof.com/index.cfm?fuseaction=products

See Try-Wing, Opsit, TP3 seem like they might be your match.

Answer 2

Yes, as everyone else has pointed out, it sounds like a specialty type of screw, designed to be tamper-resistant. You didn't specify, but if you only need to remove one screw, you may be able to get the job done without going to the trouble of finding the special screw bit you need. You can try getting a good grip on the head with a pair of vise-grip pliers. This will be tricky at first, but once you get a couple turns done, there will be more of it sticking up for you to get a grip on. You can also take a hacksaw to it. Either cut the head off completely, and then hopefully you can get a grip on the shank with vise grips after you've removed whatever is in the way to pull the rest of the screw out. I have also had success cutting a notch in the head with a hacksaw to make a flathead screwdriver work. Good luck!

Answer 3

It is a specialty/sem screw. I worked at a screw factory for awhile and these were always a special order type.

You are right, you will not be able to get it off with a flathead or phillips screwdriver. It was specially made to make it hard to take off. You can go to home depot or something and ask them to get you something to take it off is my suggestion -it would be the easiest for you and probably more cost effective.

Answer 4

Sounds like a security screw of some kind. Make a drawing and take it to an industrial supply store like WW Grainer or Fastenal. They should have a screwdriver to help you.

Answer 5

I artwork with countless metals many times and could desire to get rid of and force in a super form of screws. removing outdated rusted frozen screws as driving new one into new drilled holes (reducing a thread as they insert) The Robertson sq. head is with the help of a ways the main suitable head sort regardless of what some engineer says. i purchase the main suitable phillips head drivers i'm able to locate, and that i nonetheless positioned on them out each 50-a hundred screws or so (driving into new holes) i've got bought all of the main suitable manufacturers. Allen and Torx are ok, however the small counsel on the torx harm or strip to extremely (regardless of sort). Allen's additionally strip. in assessment, I unquestionably have pushed and got rid of 1000's of sq. head screws, frozen/seized screws, rusted screws, new ones, you call it. as quickly as I first encountered them, i bought a low fee chinese language bit set as a results of fact ti grew to become into the sole one i ought to locate in a rush. It got here with 2 #2 sq. heads (a protracted and a short), and that i'm nonetheless utilizing them. I on no account had to purchase a extra desirable set as a results of fact they have on no account failed. the sole time I unquestionably have did not get a sq. head out is whilst it is so rusted the metallic of the screw basically supplies out and that i could desire to apply a vice grip interior the stud. in assessment, i've got long previous by way of dozens of phillips bits. i purchase them 4 or 8 at a time. i've got attempted each sturdy sort i'm able to locate. Phillips is a poor layout shape. The slant of the slots unquestionably directs the stress outward pushing your bit out of the slot and making the two the screw and the bit strip extra actually. they're advantageous for timber the place you extremely on no account choose lots stress, yet they don't look to be a sturdy layout common. I choose extra businesses might use sq. and sell the bits and screws. advertisement varieties use them whilst construction equipment (what's that inform you?), yet you always won't be able to locate them at community hardware shops. The sq. head is right for utilizing with a capability motive force, and it additionally works nicely despite if that's seized and additionally you opt for to place a ratchet on it. i might query how lots actual worldwide journey anybody that say in any different case has.

Answer 6

Sounds like a security, or one way screw.

They make security screw extractors for them.

Answer 7

it's probably a proprietary screw of some kind. it would be easier with a picture. but it's probably a security screw of some kind.