What is the screw securing the TV mount to the elevator?

[boyscout]

Here's a complicated electronics question: what the heck are the four screws used to attach the TV mount to the elevator in the 310GK?

I had a set of Kobalt "star" bits - solid and hollow - but none of them fit. I bought a Milwaukee bit set including trademarked Torx bits, but none of them fit either. Both sets are in increments of five - T10, T15, T20, etc.

Do I need new eyes, an unusual size, or some other type of bit?

Thx.

[JColeman]

#2 square or Robertson bits are used all over the trailer. The bits are cheap and available basically everywhere.

https://www.harborfreight.com/square...-pc-68461.html

[boyscout]

#2 square or Robertson bits are used all over the trailer. The bits are cheap and available basically everywhere.

https://www.harborfreight.com/square...-pc-68461.html

They are for sure not Robertsons - very familiar with those - but I’ll try a Robertson bit in the Torx-like screws. Thanks for the suggestion.

[acadiaforever]

They are eight point screw heads. Very much like the six point Torx that I thought they were at first. There is another specialized driver for them, but the number 2 Robertson works fine. If anyone knows the name of the eight point design (Rob?) I'd appreciate learning it, just for curiosity's sake.

-Al

[DaveMatthewsBand]

Mine are Robertson number 2 square bit.

I discovered this when I was doing my sound bar install and had to adjust the TV on the elevator because the it was installed crooked at the factory.

[Cate&Rob]

They are eight point screw heads. Very much like the six point Torx that I thought they were at first. There is another specialized driver for them, but the number 2 Robertson works fine. If anyone knows the name of the eight point design (Rob?) I'd appreciate learning it, just for curiosity's sake.

-Al

Hi Al,

I have heard these called "double square" . . . not sure if this is the real name. As you note, a Robertson square drive will work. Looking this up on line and it is called a "Trailer/RV Double Square . . . who knew? https://www.walmart.com/ip/Trlr-Rv-D...SABEgK_MfD_BwE

Rob

[powerscol]

Whatever they are this set will have them. Saved my bacon numerous times. https://www.harborfreight.com/100-pc...ase-62657.html

[acadiaforever]

Thanks, Rob. Looks like there is also a "triple square" and "double hex", both with 12 points--but different in the geometry of the faces. Adjoining faces in the triple square are at 90 degrees, on the double hex at 120. (Runs screaming as head explodes....)
-Al

[gbkims]

List of Screw Drives - https://en.wikipedia.org/wiki/List_of_screw_drives

edit: Remembered this question - Screw head type on slide out frame

[Cate&Rob]

List of Screw Drives - https://en.wikipedia.org/wiki/List_of_screw_drives

Gene - You do have a way of finding the definitive answer to a lot of questions on this forum .

Rob