I have wondered how the AT folk build the trailers to use Toyota alloy wheels.
Does you trailer have alloy wheels? Are the studs metric thread ? Do they use OEM Toyota style flange lug nuts?
Here is a photo of OEM style nut.
Circled is what I have on 4Runner. Other is from rav4.
Appears to be designed to work on two different kinds of wheels, note the taper at the bottom. Seems like it will suit alloy wheel and tapered seat wheels. 4Runner and Tacoma have steel spare wheels from factory with tapered seats.
View attachment 567462
It is my desire to use the OEM style nuts. I wish to use alloy Toyota wheels on trailer and be able to use steel spare if nessisary.