Thomas & Betts Kindorf® B-911 Series Self-holding channel spring nut features steel construction with Galv-Krom® finish for added corrosion and longer endurance. It has thread size of 3/8 - 16. Nut offers immense resistance to pull-out as well resistance to side slip in excess of the full strength of the channels. This 3/8-Inch nut is suitable for use with 1-1/2-Inch deep Kindorf® channels. Channel spring nut is RoHS compliant.