Join threads with small diameters to large or course threads to fine with these inch-sized adapters. Use them to position components in an assembly, or to create space between parts. An external hex lets you tighten or loosen them with a wrench.

At one third the weight of steel, aluminum adapters are the lightest option. They will not rust in damp or humid environments, but they will corrode if left in water.

Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness. Adapters that meet NAS standards are made to specific dimensions and are finished with an extra layer of rust protection. Aluminum adapters that meet NAS standards have a yellow-chromate plating, and stainless steel adapters have been passivated.

For technical drawings and 3-D models, click on a part number.