Saddle Threshold Surface Type Smooth Top Aluminum Mill Finish Color Silver Width 3 in Height 1/4 in Length 4 ft Fits Door Width 48 in Thickness 0.125 in Material Aluminum Standards ANSI/BHMA Certified A156.21 UL Classified UL10C ADA Compliant Includes #10 x 1-1/2 in FH Zinc Plated Wood Screws