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Hillco Fastener copper nuts are specialty hardware designed to withstand the high temperatures of an exhaust system, while combining the anti-seize features of copper. Machined with a high-strength steel core and plated in copper, these nuts resist galling, galvanic corrosion, and heat cycle stresses. Hillco Fastener copper nuts are available in a variety of sizes to service your exhaust application.
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$5.99
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