{"product_id":"4-an-fitting-bulkhead-nut-17135","title":"ColorFittings -4 AN Fitting Bulkhead Nut","description":"ColorFittings \u003cb\u003eAN Bulkhead Lock Nuts\u003c\/b\u003e are precision CNC-machined to securely fasten AN bulkhead fittings through firewalls, chassis panels, fuel cells, and custom fabrication projects. Designed to provide a tight, vibration-resistant hold, these bulkhead nuts ensure proper alignment and a secure mounting surface for leak-free AN plumbing systems.\u003cbr\u003e\u003cbr\u003eManufactured from aerospace-grade 6061-T6 billet aluminum and finished with ColorFittings’ proprietary anodizing process, these AN bulkhead nuts deliver superior strength, corrosion resistance, and long-term durability in high-heat, high-vibration racing and street performance environments.\u003cbr\u003e\u003cbr\u003eEngineered for use with ColorFittings AN Union Bulkhead Fittings, these lock nuts provide the secure clamping force needed for fuel, oil, coolant, brake, transmission, and power steering applications. Ideal for motorsport builds, off-road vehicles, marine systems, and custom engine bay fabrication.\u003cbr\u003e\u003cbr\u003eComplete your install with our matching \u003ca href=\"https:\/\/colorfittings.com\/product\/4-an-fitting-bulkhead-straight\/\"\u003e\u003cb\u003eAN Bulkheads\u003c\/b\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/colorfittings.com\/product-category\/aluminum-hose-an-fittings\/\"\u003e\u003cb\u003eAN Fittings\u003c\/b\u003e\u003c\/a\u003e, and \u003ca href=\"https:\/\/colorfittings.com\/product-category\/an-fitting-assembly-tools\/\"\u003e\u003cb\u003eAN Assembly Tools\u003c\/b\u003e\u003c\/a\u003e for a clean, professional-grade plumbing solution built to perform.","brand":"ColorFittings","offers":[{"title":"Red","offer_id":45683535478975,"sku":"CF-BHF-04-N00-000-RD","price":2.49,"currency_code":"USD","in_stock":false},{"title":"Gold","offer_id":45683535511743,"sku":"CF-BHF-04-N00-000-GD","price":2.49,"currency_code":"USD","in_stock":false},{"title":"Lime Green","offer_id":45683535544511,"sku":"CF-BHF-04-N00-000-GR","price":2.49,"currency_code":"USD","in_stock":false},{"title":"Black","offer_id":45683535577279,"sku":"CF-BHF-04-N00-000-BL","price":2.49,"currency_code":"USD","in_stock":false},{"title":"Teal","offer_id":45683535610047,"sku":"CF-BHF-04-N00-000-TL","price":2.49,"currency_code":"USD","in_stock":false},{"title":"Orange","offer_id":45683535642815,"sku":"CF-BHF-04-N00-000-OR","price":2.49,"currency_code":"USD","in_stock":false},{"title":"Purple","offer_id":45683535675583,"sku":"CF-BHF-04-N00-000-PU","price":2.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1212\/2047\/files\/Bulkhead-Nut-Red_0d140ab0-d191-4c54-b351-734bd0364cee.png?v=1780552258","url":"https:\/\/shop.destinedindustries.com\/products\/4-an-fitting-bulkhead-nut-17135","provider":"Destined Industries ","version":"1.0","type":"link"}