Nyloc Nuts. M6 (6mm) Flanged Hex Head Bolts with Nyloc Nuts & Washers – A2 Stainless Steel. Nut Type: Nyloc Insert Lock Nut. Includes: 1 × Bolt, 1 × Nyloc Nut, 1 × Washer. Flanged Bolts. Flanged Nuts.
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