Strange screws and bits!

Archived from the Tools In Action forum (Accessories). This thread is read-only.

AltanMember since Nov 2011

I did find out there are very strange screws and their bits which never thought a screw would be designed this way. 

One is called Ultra-Lok and other one is called Key-Rex. there are even more strange screws, but these two caught my attension. 

AltanMember since Nov 2011

Ultra-Lok: Restricted tool not available to the public looool

 

 

Photo from the original forum

AltanMember since Nov 2011

Key-Rex 

Photo from the original forum

Eric – TIAMember since Jan 2010

Interesting.  I have never seen these before

AltanMember since Nov 2011

Yea, me neither! There are a lot of these strange screw profiles. 

RT29Member since Feb 2018

Wow same concept as automotive lug / wheel locks.

AltanMember since Nov 2011

RT29 wrote:

On 3/22/2025 at 4:05 PM, RT29 said:

Wow same concept as automotive lug / wheel locks.

 

I don’t exactly remember what the use of these two profiles were, but I think one is used in banking sector! 

RT29Member since Feb 2018

Altan wrote:

20 hours ago, Altan said:

 

I don’t exactly remember what the use of these two profiles were, but I think one is used in banking sector! 

That makes sense for security reasons

maxtolsoMember since Jun 2025

Yes it’s crazy how far the design of some screws goes! Ultra-Lok and Key-Rex, it is clearly done for maximum security. I’ve never seen one before either, super interesting.

 

_Mini MilitiaApp Lock

AltanMember since Nov 2011

maxtolso wrote:

On 6/30/2025 at 7:03 PM, maxtolso said:

Yes it’s crazy how far the design of some screws goes! Ultra-Lok and Key-Rex, it is clearly done for maximum security. I’ve never seen one before either, super interesting.

 

The reason that I search these things is that I wanted to patent a screw profile myself, but it does not look like any possible profile is left unpatented. loool 

DarrenerMember since Jun 2025

Altan wrote:

On 3/18/2025 at 4:21 AM, Altan said:

I did find out there are very strange screws and their bits which never thought a screw would be designed this way. 

One is called Ultra-Lok and other one is called Key-Rex. there are even more strange screws, but these two caught my attension. 

I recently came across Ultra-Lok and Key-Rex too had no idea screws like that existed. Really interesting how far screw design has come!

AltanMember since Nov 2011

Darrener wrote:

On 7/10/2025 at 4:38 PM, Darrener said:

I recently came across Ultra-Lok and Key-Rex too had no idea screws like that existed. Really interesting how far screw design has come!

 

Yeah, it is crazy! 

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