Thread geometry - Unified Extra Fine (UNEF) All dimensions in mm unless otherwise stated.

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

Thread pitch chart for UNC, UNF, UNEF, and constant-pitch UN series up to 2 inches. Reference ASME B1.1 Unified Inch Screw Threads (UN and UNR). Includes TPI values and practical usage tips.

Choose from our selection of UNEF connectors, including over 100,700 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of UNEF plugs, including over 24,500 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of UNEF bolts, including hex head screws, socket head screws, and more. Same and Next Day Delivery.

Choose from our selection of UNEF pipe fittings, including metal pipe and pipe fittings, plastic pipe and pipe fittings, and more. Same and Next Day Delivery.

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

Choose from our selection of UNEF nuts, including hex nuts, locknuts, and more. Same and Next Day Delivery.

Choose from our selection of UNEF plug gauges, including Class Z go plug gauges, Class X plug gauges, and more. Same and Next Day Delivery.