2

I bought a portable stove for my travel but it broke and I tried to open it. But one of the screw looks like this. I have no idea if the manufacture put a abnormal screw. How do I unscrew this?

enter image description here

3kstc
  • 1,097
  • 7
  • 19
user42493
  • 211
  • 1
  • 4
  • 1
    while it is a travel stove, you may find more support on The Great Outdoors, where more users use travel stoves while camping, hiking, etc or Home Improvement which covers screwdrivers and such. – Kate Gregory Sep 17 '19 at 00:49
  • I'm voting to close this question as off-topic because this is about a screwdriver, not about travel. – Willeke Sep 17 '19 at 03:14
  • 1
    You can also sometimes use a snake eyes bit, or get a cheap flat blade screwdriver and file a slot in it with a needle file (better screwdrivers are too hard to file, hence the cheap one) – Chris H - UK Sep 17 '19 at 06:32

2 Answers2

6

This appears to be a "H-Type (notched spanner)" screw from the description below (second row from the top, second column from the right):

enter image description here

You will need a H-type screw driver:

enter image description here

3kstc
  • 1,097
  • 7
  • 19
3

It's a fairly common form of "tamper proof" head, you need a bit that looks like a regular flat blade but with a slot in the middle. I think it's sometimes called a "spanner head". In my experience most "security bit sets" contain that style of bit in a variety of sizes.

Peter Green
  • 11,280
  • 1
  • 31
  • 51