Serrated Flanged Nuts. A2 Stainless Steel. M5,M6,M8,M10 A2. M4,M5,M6,M8 A2 Stainless Steel. M3, M4, M5, M6, M8. Flanged nuts with serrated face. M4, M5, M6, M8mm. Serrated face bites into the material to produce a locking effect.
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