If the screws are pulling out very easily then the best mod you can do is fit longer bolts with nylock nuts. This would be the optimal set up for the outer rings.
For the inner rings you can use my coarse threaded screws without any problems.
The ID is the same for the Losi wheels as the HPI wheels. The offset is increased to allow for clearance of the hubs & stering geometry.
Our v3 lipped outer rings are over 20% stronger (flexural strength) and over 30% tougher (impact resistance) than any commercially available 'plastic' rings. The v3 rings have a larger surface area protecting more of your tyre sidewall. They are compatible with all HPI Baja wheels, and Losi 5ive wheels.
We also have lipped inner rings to use with the Losi 5ive wheels & tyres, and we also have non lipped inner rings for the HPI Baja platforms. If you are running axle extenders on the Losi, you can also use our non lipped inners.