Hammer Drive Pin Anchor Anchor Diameter 5/16 in Overall Length 8 in Thread Size Not Applicable Thread Length Not Applicable Anchor Material Stainless Steel Pin Material Stainless Steel Finish Plain Head Type Flat Head Diameter Not Applicable Head Height Not Applicable Nut Width Not Applicable Washer Outside Diameter Not Applicable Drill Bit Size 1/4 in Minimum Installation Depth 1 1/4 in Maximum Material Thickness 3 1/2 in Pin-Drive Anchor Type Helical Facade Anchor