M4 / M5 / M6 / M8 / M10 / M12 / M16 / M20 Nyloc Nuts – BZP, A2 & A4 Stainless Steel (Nylon Insert Lock Nuts). BZP: Bright Zinc Plated Steel. Nyloc Nuts. Type: Nyloc / Nylon Insert Lock Nut. Sizes Available: M4, M5, M6, M8, M10, M12, M16, M20.
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