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Hillman 8-mm x 1.25 Zinc-plated Steel Nylon Insert Nut (4-Count) in the Lock Nuts department at Lowes.com
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100pcs) BelMetric M8 Metric Reduced 10mm Wrench Copper Plated Exhaust Locking Nut, Class 10 Hardened Steel for High Heat NCF8X10N - Amazon.com
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Amazon.com: Rexka Exhaust Spin Lock Nuts W/Serrations M10-1.25 Compatible with Toyota Honda 90212-SA5-003 Accord Civic (Pack of 30) : Automotive
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M7X1.0 Metric Copper Plated Exhaust Locking Nut, Class 10 Hardened Steel For High Heat NCF7X11 - Walmart.com
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Hex Flange Nut Copper M8-1.25xM12x8.6mm | Hex Flange Lock Nuts | Nuts | Metric Hardware | Hardware | Wurth USA
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