M6-1.0, HGT=5mm, OD=11mm DIN 546, Metric, Round Nuts, Slotted Drive, AISI 303 Stainless Steel (18-8)

Unlike typical nuts, round nuts cannot be tightened using their external sides, or across flats.Tighten or loosen using a slot cut across the top surface of the round nut.Stainless steel significantly improves resistance to tarnishing or corrosion...