Trailer torx screws

[amusall]

The screws on both the exterior of my trailer as well as the interior trim look to be between a T15 and T20. Anyone know exactly what size they are? Im thinking it might be some type of tamper proof size

 

[Lynd Motorsports]

S2 square bit works the best

 

[B-R Racing Enterprises]

As Sean said, they are a double square screw not a torx. 8 points versus 6.

 

[Ted Hamilton]

As Sean said, they are a double square screw not a torx. 8 points versus 6.

Until they strip, then they're round. Local trailer supplier should carry them, or McMaster Carr or Amazon.

 

[mike97760]

I have always heard them called Johnson bits.

 

[Ted Hamilton]

8 pts = double square....