Anchor Rivet Anchor Diameter 1/4 in Overall Length 3/4 in Thread Size Not Applicable Thread Length Not Applicable Anchor Material Nylon Pin Material Steel Finish Plain Head Type Round Head Diameter 0.54 in Head Height 0.11 in Nut Width Not Applicable Washer Outside Diameter 0.5625 in Drill Bit Size 1/4 in Minimum Installation Depth 1/4 in Maximum Material Thickness 21/32 in Pin-Drive Anchor Type Nylon Removable Nail Drive Anchor System of Measurement Inch