Perfect for use with Atlas trucks with couplers. Fits most cars.

Took a chance on this item because no dimensions are given for the pins nor is there any wordage that states “also fits so-and-so brands”. I can tell you that the pins fit perfectly on an old Minitrix N scale tender that was missing its pins. If you know the size you need or are trying to match this product to the pins you already have, the dimensions of the pin head is about 3.94mm, the working area under the head (upon which the truck pivots) is about 2.70mm and the thinnest part is about 1.90mm. The latter section is fluted or striated along its length for a positive friction fit. These might be superior to screws because it's plastic on plastic with zero chance of stripping as there is with a screw. These pins might be universal for all N scale rolling stock that uses truck pins but I am not sure.

They work! They fit all my cars. I used them with Atlas trucks on Atlas cars, and a Micro-Trains car.