GEWINDESTANGE M20 X 2,5 MM MUTTERN & SCHEIBEN 8,8 HOCHFEST STAHLSTABBOLZEN
These are a DIN 975. Further details are as follows Threaded Bar with Nuts & Washers - 8.8 Bright Zinc Plated Steel. Threaded Bar. BA Screws, Nuts. BSW Screws, Nuts. UNC Screws, Nuts. Pop Rivets & Rivet Nuts.