Free annual service

Sigma introduced and patented the first 4 prong T-Nuts with the now familiar 8-sided base in 1964. This has become the standard configuration for machine driven T-Nuts. Sigma has supplied over 1800 T-Nut Machines to manufacturers throughout the world and many of those have been installed by JET PRESS.

As well as Sigma T-Nuts we can supply and install Table-Top T-Nut Insertion Machines, Floor Rivet T-Nut Insertion Machines and a Drill, Drive and Rivet T-Nut Machine, all from Sigma. Delivery of the machines, along with installation, training and full technical support is included in the price. We will also provide an annual service free of charge for as long as you use the machines with our Sigma T-Nuts.