The couplers are designed to represent the screwlinks used by nearly all British freight rolling stock, and some passenger vehicles. The screwlinks are being offered in two lengths – short (14mm length overall) and medium (19mm length overall) and have NEM tongues at either end.
They are one-piece mouldings and cannot be coupled and uncoupled; they are designed to offer a more realistic and discreet appearance than the traditional N gauge coupler on fixed rakes of wagons.
The shorter couplers are those supplied with the IZAs and IPAs and are suitable for vehicles with no buffers, or where kinematic coupler mounts allow vehicles to “open up” on tight, trainset curves of less than around 381mm (15″) radius. The longer ones are intended for vehicles with buffers, or without kinematic coupler mounts.
Packs of 10: 10 x short; or 10 x medium; or mixed pack of 5 x short and 5 x medium.