THOMAS & BETTS 3900, Raised Floor System Grid Clamp, 8 to 4 AWG, Steel, 1pc Raised Floor System Grid Clamp; Conductor Size 8 to 4 AWG; Installation Ground Clamp; Material Steel; Approval UL, CSA; Includes Zinc Plated Screw. KILLARK 2FSD-2, Cast Device Box, 4-11/16" x 2" x 4-5/8", 2 Gang, 1pc. byJuly 4, 2026