Belle and the Yank 6mm Metric T-Nuts Prong Drive In Style 19mm Flange Diameter Steel 10 Pack Threaded M6 x 1.0 Package Quantity 10 = 10 T-Nuts 19mm Head Diameter x 9.2mm Overall Height Requires 7.5mm Hole Minimum 4 Prong Drive In Style Unfinished Steel