M20 x 2mm x 55mm Fine Pitch Hexagon Setscrews (DIN 961) - Steel 10.9 Self Colour Hexagon Setscrews are very versatile screws, which are tightened and loosened with a spanner matching the head diameter (across the flats). Their Hexagonal Head allows for a great amount of torque to be applied, making them ideal in heavy duty applications. Hexagon Setscrews, have a fully threaded shaft, right up to the head, whereas Hexagon Bolts are only partially threaded. The full thread allows them to be used in a multitude of situations without fear of running out of thread. These Fine Pitch Hexagon Setscrews are made from 10.9 High Tensile Steel and have a black self colour finish. For larger quantities or custom lengths, please email and one of our team will provide you with a quotation. M20 x 2mm x 55mm Fine Pitch Hexagon Setscrews (DIN 961) - Steel 10.9 Self Colour