Hygienic Hex Head Screws Drive Hex Drive Size 18 mm Fastener Length 60 mm Finish Polished Flange Diameter 25 mm Head Height 21 mm Head Width 18 mm Material Stainless Steel Material Grade/Class Grade 316L Material Quality Standards AISI Minimum Thread Length 30 mm Pack Size Small Pack System of Measurement Metric Tensile Strength 500 N/sq mm Thread Size M12 Thread Style Partially Threaded Resistance Properties Corrosion-Resistant