Hygienic Hex Head Screws Drive Hex Drive Size 13 mm Fastener Length 60 mm Finish Polished Flange Diameter 16 mm Head Height 8.5 mm Head Width 13 mm Material Stainless Steel Material Grade/Class Grade 316L Material Quality Standards AISI Minimum Thread Length 22 mm Pack Size Small Pack System of Measurement Metric Tensile Strength 500 N/sq mm Thread Size M8 Thread Style Partially Threaded Resistance Properties Corrosion-Resistant