{"product_id":"fastronix-solutions-3-8-thru-panel-battery-terminal-studs-440a-continuous-copper-core-with-nylon-backing-usa-made","title":"Fastronix Solutions 3\/8\" Thru-Panel Battery Terminal Studs — 440A Continuous, Copper Core with Nylon Backing (USA Made)","description":"\u003cp\u003e\u003cstrong\u003eFastronix Premium High Current 3\/8\" Thru Panel Battery Terminal Connectors are heavy-duty, USA-made thru-panel studs designed to deliver up to 440 amps continuous (with 550A momentary spikes) for secure battery and power distribution connections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese thru-panel battery terminals combine an inner copper core for efficient current flow with a non-conductive nylon backing nut so you can mount them in metal or composite panels without risk of shorts. Machined for durable service in automotive, marine, RV, golf cart, off-grid and industrial applications, they accept standard 3\/8\" ring terminals and work with Fastronix rubber covers (404-110 and 404-111) for a finished, protected installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow much current can these 3\/8\" studs handle?\u003c\/h3\u003e\n\u003cp\u003eEach stud is rated for 440 amps continuous at 12 volts and can tolerate brief 550 amp momentary spikes. The inner copper core reduces voltage drop under heavy load, while the robust stud and nut assembly keeps connections mechanically secure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContinuous rating: 440 A @ 12 V\u003c\/li\u003e\n  \u003cli\u003eMomentary surge capacity: 550 A\u003c\/li\u003e\n  \u003cli\u003eAccepts standard 3\/8\" ring lugs and heavy gauge cable\u003c\/li\u003e\n  \u003cli\u003eCopper core minimizes resistive losses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat panel types and thicknesses will these terminals mount to?\u003c\/h3\u003e\n\u003cp\u003eDesigned for thru-panel mounting, the studs fit a 1-17\/64\" diameter hole and handle panels up to 7\/16\" thick. The included nylon backing nut creates a non-conductive barrier so you can safely install them in metal enclosures without additional insulators.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHole size required: 1-17\/64\" (approximately 31.5 mm)\u003c\/li\u003e\n  \u003cli\u003eMaximum panel thickness: 7\/16\" (11.1 mm)\u003c\/li\u003e\n  \u003cli\u003eNylon backing nut prevents panel shorting\u003c\/li\u003e\n  \u003cli\u003eWorks in metal, plastic, fiberglass panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I finish and protect the installation?\u003c\/h3\u003e\n\u003cp\u003eFor a clean, weather-resistant result, pair the studs with Fastronix rubber terminal covers (models 404-110 or 404-111). Tighten ring lugs or cable clamps to the 3\/8\" stud and slide on a protective cover to keep corrosion and accidental contact at bay.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Fastronix covers 404-110 and 404-111\u003c\/li\u003e\n  \u003cli\u003eAccepts crimped or soldered 3\/8\" ring terminals\u003c\/li\u003e\n  \u003cli\u003eTorque fittings securely to avoid heating under load\u003c\/li\u003e\n  \u003cli\u003eBacked by robust materials for long-term use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these terminals suitable for marine, automotive, and off-grid systems?\u003c\/h3\u003e\n\u003cp\u003eYes — the copper core and heavy-duty stud design make these terminals appropriate for high-current environments including cars, boats, RVs, solar\/generator systems, and industrial equipment. Use the nylon backing nut and rubber covers to help resist corrosion and accidental shorts in harsh or confined installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for automotive, marine, RV, solar, and industrial power distribution\u003c\/li\u003e\n  \u003cli\u003eNylon backing allows safe mounting in metal cabinets and panels\u003c\/li\u003e\n  \u003cli\u003eSolid copper core supports repeated high-current cycles\u003c\/li\u003e\n  \u003cli\u003eUse with protective covers to extend service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Installers, electricians, boat and RV owners, DIYers and system integrators who need a reliable, high-current thru-panel connection rated for heavy loads. If you require a neat, secure panel feed that handles hundreds of amps and accepts common 3\/8\" terminals, Fastronix Premium High Current Thru Panel Battery Terminal Connectors provide a USA-made, service-grade solution engineered for demanding electrical setups.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What hole size and panel thickness do I need?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Cut a 1-17\/64\" hole and use panels up to 7\/16\" thick; nylon nut allows metal panel mounting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these studs accept standard 3\/8\" ring terminals?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they accept standard 3\/8\" ring lugs and are rated 440A continuous with 550A surge.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fastronix Solutions","offers":[{"title":"Default Title","offer_id":48083160432798,"sku":"B079K5HB79","price":58.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fastronix-front-panel-stud-closeup.jpg?v=1785827087","url":"https:\/\/northtrailauto.ca\/products\/fastronix-solutions-3-8-thru-panel-battery-terminal-studs-440a-continuous-copper-core-with-nylon-backing-usa-made","provider":"North Trail Auto","version":"1.0","type":"link"}