High Grade T Nuts

We are Exporting Importing and Supplying High Grade T Nuts in Bengaluru Karnataka India. In 1964 Sigma introduced and patented the first 4 prong T-Nut with the now familiar 8-sided base. Unlike the standard round base T-Nuts the new Sigma T-Nuts could be fed efficiently and reliably by machine. The 8-sided T-Nut base has become the standard configuration for T-Nuts inserted by machine. Sigma Tool & Machine is one of the world's largest manufacturers and suppliers of T-Nuts for the upholstered furniture industry.




Today Sigma continues to manufacture and supply quality T-Nuts designed for machine insertion. Machine driven T-Nuts are available in the popular ultragrip style as well as step barrel T-Nuts in a variety of sizes options and finishes




Sigma UltraGrip T-Nuts



Sigma Rivet T-Nuts



Torqloc T-Nuts



Sigma Strip Collated T-Nuts



Collated T-Nuts


T-Nut Barrel Options



T-Nut Finishes