Hygienic Truss-Head Panel Screws Head Type Truss Material Stainless Steel Finish Polished Drive Open-End Spanner Thread Size M8 Fastener Length 20 mm Head Width 20 mm Head Height 5 mm Drive Size 13 mm Tensile Strength 200 N/sq mm Pack Size Small Minimum Thread Length 20 mm Type Hygienic Ball Head Screw System of Measurement Metric Thread Direction Right Hand