Spanner nuts, spacers, sleeves, and custom threaded parts.
McMellon Bros. makes parts that combine threads, turned diameters, and milled details, each inspected against its drawing.
Aerospace Nuts & Spanner Nuts
Internally threaded nuts and spanner nuts for aerospace and defense assemblies, where fit, inspection, and repeatability matter.
Spacers & Gearbox Components
Spacers, sleeves, and other cylindrical parts used in gearboxes and similar assemblies.
Custom Threaded Components
Internally and externally threaded parts made to your drawing.
Machined Parts
Turned and milled components with the features your assembly needs, threaded or not.
Part families shaped by fit, function, and application.
Each part’s fit and function decide how it is made, from the first turning operation to the final thread check.
Start a conversation with us.
Call the shop to talk through a part or a repeat order.