Hygienic Hex Head Screws Drive Hex Drive Size 30 mm Fastener Length 40 mm Finish Matte Flange Diameter 40 mm Head Height 32 mm Head Width 30 mm Material Stainless Steel Material Grade/Class Grade 316L Material Quality Standards AISI Pack Size Small Pack System of Measurement Metric Tensile Strength 500 N/sq mm Thread Size M20 Thread Style Fully Threaded Resistance Properties Corrosion-Resistant