Hygienic Hex Head Screws Drive Hex Drive Size 22 mm Fastener Length 50 mm Finish Polished Flange Diameter 28 mm Head Height 13 mm Head Width 22 mm Material Stainless Steel Material Grade/Class Grade 316L Material Quality Standards AISI Minimum Thread Length 38 mm Pack Size Small Pack System of Measurement Metric Tensile Strength 500 N/sq mm Thread Size M16 Thread Style Partially Threaded Resistance Properties Corrosion-Resistant