Serrated Flanged Hexagon Head bolts. Manufactured to DIN 6921 \/ ISO 1665 in A2 (304) Stainless Steel.\r\nPlease note that these are sold in multiples of 10\r\nFlanged Hexagon Head Bolts are often used as an alternative to a standard Hexagon bolt due to addition of a flange which acts a replacement for a washer. This version has a serration under the head which helps to improve grip. Driven by a spanner or a wrench, a high level of torque can be applied to these bolts in comparison to other types of drive. These can come with an inverted head or a flat head depending on different manufacturers and can also come part threaded or fully threaded. Please contact us before ordering if you have a certain requirement.\r\nManufactured from A2 stainless steel these offer good corrosion resistance and are almost non magnetic.