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Stainless Nylon Insert Lock Nuts 1/4"-20 Qty: 25 (Nylock): Hex Nuts: Amazon.com: Industrial & Scientific
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M5-0.80 Serrated Flange Nut Hex Lock Nuts, Stainless Steel 304, Plain Finish, Quantity 50: Amazon.com: Industrial & Scientific
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Lock Nut 1/4"-20 Inch (100 Pieces) Stainless Steel Finish Hex, by Bolt Dropper, 304 18-8 Stainless with Nylon Insert.: Amazon.com: Industrial & Scientific
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