JORDAHL double-notch toothed bolt M20x80

JKB M20 have European Technical Assessment ETA-09/0338. They are intended for use with W 50/30, W 50+ and W 53/34 hot-rolled profile anchor channels and mounting channels. They are made of hot-dip galvanised steel, have double serrations at the head of the bolt and two notches at the end of their shaft. The bolts are available in different lengths. The JKB M20 are supplied with the nuts.