{"product_id":"copper-solder-tag-lug-ring-earth-connector-welding-washer-m2-2-m8-2","title":"Copper Solder Tag Lug Ring Earth Connector M2.2–M8.2","description":"\u003ch2\u003eCopper Soldering Lug Ring – Reliable Earth Connector for Electrical Projects\u003c\/h2\u003e\n\u003cp\u003eWhether you're wiring up a DIY electronics project, grounding a circuit board, or building custom electrical assemblies, these \u003cstrong\u003eCopper Solder Tag Lug Rings\u003c\/strong\u003e deliver a solid, low-resistance connection every time. Made from high-conductivity copper, each lug ring features a clean punched center hole and a flat soldering tab, making it easy to secure to a screw terminal and solder your wire in place.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Copper Construction\u003c\/strong\u003e – High-conductivity copper material ensures excellent electrical performance and durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Size Range\u003c\/strong\u003e – Available in M2.2, M2.7, M3.2, M4.2, M5.2, M6.2, and M8.2 to suit a variety of screw and terminal sizes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo Thickness Options\u003c\/strong\u003e – Choose from 0.3 mm or 0.4 mm thickness to match your project requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Solder\u003c\/strong\u003e – Flat soldering lug tab provides ample surface area for secure wire attachment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use\u003c\/strong\u003e – Ideal for grounding (earth) connections, PCB assemblies, automotive wiring, hobby electronics, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable\u003c\/strong\u003e – Suitable for custom-sized orders and bulk project needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes (Inner Diameter)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM2.2 \/ M2.7 \/ M3.2 \/ M4.2 \/ M5.2 \/ M6.2 \/ M8.2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 mm \/ 0.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolder Tag Lug Ring \/ Earth Connector \/ Welding Washer\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePCB and circuit board grounding connections\u003c\/li\u003e\n  \u003cli\u003eDIY electrical and electronics projects\u003c\/li\u003e\n  \u003cli\u003eAutomotive and motorcycle wiring harnesses\u003c\/li\u003e\n  \u003cli\u003eIndustrial control panel assembly\u003c\/li\u003e\n  \u003cli\u003eAmateur radio and hobby electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eLooking to expand your electrical toolkit? Check out these related items:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-2-pin-quick-splice-spring-wire-connectors-lock-terminals\"\u003e10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12pcs-16mm-momentary-push-button-switch-1no-metal-2-pin-self-reset\"\u003e12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the size designation (e.g., M2.2) mean for these copper solder lug rings?\u003c\/h4\u003e\n\u003cp\u003eA: The size designation refers to the inner diameter of the ring hole. For example, M2.2 means the center hole has an inner diameter of 2.2 mm, which fits a corresponding M2.2 screw or terminal stud. Choose the size that matches the screw or bolt you are fastening the lug to.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the 0.3 mm and 0.4 mm thickness options?\u003c\/h4\u003e\n\u003cp\u003eA: The 0.4 mm thick copper lug rings offer slightly greater rigidity and are better suited to higher-current or more robust mechanical applications, while the 0.3 mm rings are a good choice for lighter-duty electronics and PCB work where minimal added height is desired.\u003c\/p\u003e\n\u003ch4\u003eQ: Can these copper soldering lugs be used for automotive grounding applications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. These copper solder tag lug rings are well-suited for automotive grounding and earth connector applications. Their copper construction provides excellent conductivity, and the wide size range (M2.2 to M8.2) accommodates many standard automotive bolt sizes.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these solder lug rings compatible with standard soldering irons?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The flat soldering tab is designed for easy use with a standard soldering iron. Simply thread your wire through or lay it on the tab, apply solder, and secure — no special tools required.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the size designation (e.g., M2.2) mean for these copper solder lug rings?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The size designation refers to the inner diameter of the ring hole. For example, M2.2 means the center hole has an inner diameter of 2.2 mm, which fits a corresponding M2.2 screw or terminal stud. 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