Microcosm 10-Pack 1/4"x40TPI Brass UNION NUTS & Cones For 3mm Steam Engine Pipes
£18.95
Model: UNION NUTS. Bore: 3mm (0.12in). Applicable Thread Specification: 1/4" × 40 TPI. Made of brass, they are durable and aesthetically pleasing, and ideal for DIY model piping systems.
