M10 - 10mm BOLTS NYLOC NUTS WASHERS HIGH TENSILE PART THREADED HEX HEAD 8.8 ZINC. M10 x 10mm Flanged Nylon Locking Nuts (DIN 6926) - Stainless Steel (A2). The elastic Nylon insert of this component fits firmly against the fastener, and is intended to withstand loosening when subjected to harsh vibrations.
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