T-Anchor Toggle Gravity Activated Size (In.) 3/8 x 4 Ultimate Pullout (Lb.) 1000 Ultimate Shear (Lb.) 3000 Anchor Dia./Drill Bit Sz. (In.)/TPI 3/8 Max Work Thickness (In.) 2-3/4 Thread Length (In.) 1.8 In. Grip Range (In.) 2 - 2-3/4 Meets/Exceeds G.S.A. FF-B-588C A.N.S.I. A58.1 A.S.T.M. B-633 Includes Body Nut Washer Anchor Length (In.) 4 Bolt Dia (In.) / Threads/In. 3/8 - 16 Box Count 4 per pack Head Style Nut Hole Dia (In.) 3/8 Shank Length (In.) 4 Size 3/8 x 4 In.