{"product_id":"roller-chain-connecting-link-04c-06b-to-12a-split-link","title":"04C-1 06B-1 To 12A-1 Roller Chain Connecting Link Conn Link. 04C-12A Split Link","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eRoller Chain Connecting Link — Reliable Split Links for #25 to #60 Roller Chains\u003c\/h2\u003e\n    \u003cp\u003eWhen a roller chain snaps mid-project or needs extending, sourcing the right roller chain connecting link quickly is critical — whether you're maintaining conveyor systems, agricultural equipment, go-karts, or industrial machinery. These split links are engineered for mechanics, fabricators, and DIY builders who need a dependable, drop-in replacement that holds under load without guesswork.\u003c\/p\u003e\n    \u003cp\u003eEach connecting link consists of a matched outer plate, inner plate, roller pin, and spring clip, machined from carbon steel for consistent tensile strength. Available chain types span #25 (04C-1, Pitch 6.35mm \/ 0.25 in) through #60 (12A-1, Pitch 19.05mm \/ 0.75 in), covering the most common ANSI\/ISO roller chain standards. Pack quantities range from 1 to 20 pieces per order.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include replacing broken chain links on bicycle-style drive systems, extending conveyor chain runs in light industrial settings, and repairing go-kart or mini-bike drive chains — all scenarios where a correctly pitched roller chain split link prevents costly downtime.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n    Compatible with ANSI\/ISO standard roller chains: #25 (04C-1), #35 (06B-1), #40 (08A-1 \u0026amp; 08B-1), #50 (10A-1), #60 (12A-1). Match your chain number before ordering.\n  \u003c\/div\u003e\n\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These Roller Chain Connecting Links\u003c\/h2\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n      \u003cstrong\u003eMulti-Standard Coverage\u003c\/strong\u003e\n      \u003cp\u003eCovers six chain types from #25 to #60, spanning pitches of 6.35mm to 19.05mm — one listing for the most common ANSI\/ISO roller chain sizes.\u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n      \u003cstrong\u003eCarbon Steel Construction\u003c\/strong\u003e\n      \u003cp\u003eMachined from carbon steel for consistent tensile strength and dimensional accuracy, ensuring a secure fit within the chain's pitch tolerance.\u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔒\u003c\/span\u003e\n      \u003cstrong\u003eSpring Clip Retention\u003c\/strong\u003e\n      \u003cp\u003eEach link includes a spring clip (cotter pin style) for tool-free installation and removal, keeping the outer plate locked under dynamic load.\u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n      \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n      \u003cp\u003eOrder 1, 5, 10, 15, or 20 pieces per pack — ideal for single repairs, maintenance kits, or stocking spare parts for ongoing operations.\u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n      \u003cstrong\u003ePitch-Matched Precision\u003c\/strong\u003e\n      \u003cp\u003eEach variant is manufactured to the exact pitch of its chain standard, preventing misalignment, accelerated wear, and premature link failure.\u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e\n      \u003cstrong\u003eTool-Free Installation\u003c\/strong\u003e\n      \u003cp\u003eThe spring clip design allows field installation without a chain press or special tools — simply thread the pins through the chain ends, seat the outer plate, and clip.\u003c\/p\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — Roller Chain Connecting Links\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eANSI \/ ISO Roller Chain\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Chain Types\u003c\/th\u003e\n\u003ctd\u003e#25 (04C-1), #35 (06B-1), #40 (08A-1), #40 (08B-1), #50 (10A-1), #60 (12A-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePitch Range\u003c\/th\u003e\n\u003ctd\u003e6.35mm – 19.05mm (0.25 in – 0.75 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRetention Type\u003c\/th\u003e\n\u003ctd\u003eSpring Clip (Cotter Pin Style)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePack Quantity Options\u003c\/th\u003e\n\u003ctd\u003e1 \/ 5 \/ 10 \/ 15 \/ 20 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWeight per Link\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I know which chain number to select?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the chain number stamped on your existing chain or listed in your equipment manual. The chain number (e.g., #40, #50) directly corresponds to the pitch: #40 = 12.7mm pitch, #50 = 15.875mm pitch. If unsure, measure the center-to-center distance between two adjacent pins — that is your pitch.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between 08A-1 and 08B-1 for #40 chain?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBoth are #40 chain with a 12.7mm pitch, but 08A-1 follows the ANSI standard (common in North America) and 08B-1 follows the ISO\/British standard (common in Europe). The inner width and roller diameter differ slightly. Check your chain's origin or equipment spec to confirm which standard applies before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow strong are these connecting links under load?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCarbon steel connecting links are designed to match the tensile strength rating of the corresponding chain standard. For exact load ratings, refer to the ANSI\/ISO specification for your chain number. These links are suitable for standard drive and conveyor applications within those rated loads — avoid using them in applications that exceed the chain's published working load limit.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these links corrosion-resistant for outdoor or wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCarbon steel has moderate corrosion resistance. For outdoor or high-moisture environments, regular lubrication with a chain-compatible oil or grease is recommended to extend service life. If your application requires higher corrosion resistance, consider stainless steel chain links instead.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these links on both drive chains and conveyor chains?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. These connecting links are compatible with standard ANSI\/ISO roller chains used in both drive (power transmission) and conveyor applications, provided the chain number and pitch match. Always verify the chain type and working load before installation in conveyor systems with side loads or attachments.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many links should I order for a repair vs. a maintenance stock?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor a single chain repair, 1 PCS is sufficient. For a maintenance kit covering multiple machines or future repairs, 5–10 PCS per chain size is a practical stock level. If you operate multiple pieces of equipment with the same chain standard, the 15 or 20 PCS packs offer better per-unit value.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo I need special tools to install a connecting link?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNo special tools are required. Thread the two pins through the chain ends, slide the outer plate over the pins, then press the spring clip into the pin grooves using needle-nose pliers or your fingers. Removal is equally straightforward — pry the spring clip off and slide the outer plate free.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your chain type and pack quantity above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I know which chain number to select?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the chain number stamped on your existing chain or listed in your equipment manual. The chain number directly corresponds to the pitch: #40 = 12.7mm, #50 = 15.875mm. If unsure, measure the center-to-center distance between two adjacent pins.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between 08A-1 and 08B-1 for #40 chain?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Both are #40 chain with 12.7mm pitch. 08A-1 follows the ANSI standard (North America) and 08B-1 follows the ISO\/British standard (Europe). Inner width and roller diameter differ slightly — check your equipment spec before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong are these connecting links under load?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Carbon steel connecting links match the tensile strength rating of the corresponding ANSI\/ISO chain standard. Refer to the published specification for your chain number for exact load ratings.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these links corrosion-resistant for outdoor or wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Carbon steel has moderate corrosion resistance. Regular lubrication with chain oil or grease is recommended for outdoor or high-moisture use. For higher corrosion resistance, consider stainless steel alternatives.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these links on both drive chains and conveyor chains?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, provided the chain number and pitch match. Always verify the working load before installation in conveyor systems with side loads or attachments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many links should I order for a repair vs. a maintenance stock?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"1 PCS is sufficient for a single repair. For maintenance kits, 5–10 PCS per chain size is practical. The 15 or 20 PCS packs offer better per-unit value for multi-machine operations.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need special tools to install a connecting link?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No special tools required. Thread the pins through the chain ends, slide the outer plate over the pins, then press the spring clip into the pin grooves with needle-nose pliers. Removal is equally straightforward.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"Carbon steel \/ #35(06B-1) - Pitch 9.525mm \/ 1PCS","offer_id":52423159906578,"sku":"GYJLTGLBZSJ073453x1","price":1.48,"currency_code":"USD","in_stock":true},{"title":"Carbon steel \/ #40(08A-1) - Pitch 12.7mm \/ 1PCS","offer_id":52423159939346,"sku":"GYJLTGLBZSJ073454x1","price":1.48,"currency_code":"USD","in_stock":true},{"title":"Carbon steel \/ #40(08B-1) - Pitch 12.7mm \/ 1PCS","offer_id":52423159972114,"sku":"GYJLTGLBZSJ073455x1","price":1.48,"currency_code":"USD","in_stock":true},{"title":"Carbon steel \/ #25(04C-1) - Pitch 6.35mm \/ 1PCS","offer_id":52423160004882,"sku":"GYJLTGLBZSJ073456x1","price":1.48,"currency_code":"USD","in_stock":true},{"title":"Carbon steel \/ #50(10A-1) - Pitch 15.875mm \/ 1PCS","offer_id":52423160037650,"sku":"GYJLTGLBZSJ073457x1","price":1.48,"currency_code":"USD","in_stock":true},{"title":"Carbon steel \/ #60(12A-1) - Pitch 19.05mm \/ 1PCS","offer_id":52423160070418,"sku":"GYJLTGLBZSJ073458x1","price":1.77,"currency_code":"USD","in_stock":true},{"title":"Carbon steel \/ #35(06B-1) - 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