Specialize in UNJ threads for aerospace and high-stress applications with Jarvis Cutting Tools. Precision threading for critical performance demands.

Choose from our selection of UNJ taps in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of UNJ/UNJF (JIC) tube fittings, including over 275 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of single-point thread mills in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of thread mills in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of threading end mills, including carbide square end mills, high-speed steel square end mills, and more. Same and Next Day Delivery.

Choose from our selection of UNJF adapters, including over 60 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of UNJF inserts, including over 80 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of carbide taps, including general purpose taps, tap sets, and more. Same and Next Day Delivery.

UNJ vs. UN THREADS The UNJ thread standard (ASME B1.15) defines a system of threads for highly stressed applications requiring high fatigue strength. It was derived from a military specification (MIL …