{"product_id":"a2-stainless-steel-duplex-roller-chains-full-half-connecting-links-06b-2-20a-2","title":"A2 Stainless Steel Duplex Roller Chains Full\/Half Connecting Links 06B-2 - 20A-2","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eA2 Stainless Steel Duplex Roller Chain Connecting Links — Corrosion-Resistant Replacement for 06B-2 to 20A-2\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or broken connecting link brings your conveyor, drive system, or industrial equipment to a halt, every minute of downtime costs you. Engineers, maintenance technicians, and serious DIYers who work with duplex roller chains need a replacement link that installs quickly, holds under load, and won't corrode in wet or chemically exposed environments. These A2 stainless steel duplex roller chain connecting links are engineered for exactly that situation.\u003c\/p\u003e\n\u003cp\u003eEach connecting link is machined from A2 (AISI 304) stainless steel, offering solid corrosion resistance across a wide range of environments. Available in duplex full link buckle, duplex half link buckle, and three-row full link buckle styles, these links cover pitches from 9.525 mm (3\/8 in) on the 06B-2 up to 31.75 mm (1-1\/4 in) on the 20A-2, with the 08B-3 three-row variant at 12.7 mm (1\/2 in) pitch. Sold in quantities of 1, 2, or 5 pieces per order.\u003c\/p\u003e\n\u003cp\u003eTypical applications include food-processing conveyor lines where wash-down resistance is required, agricultural machinery exposed to moisture and fertilizer residue, marine deck equipment subject to salt-air corrosion, and general industrial drive systems where standard carbon-steel links corrode prematurely. The duplex (double-strand) configuration doubles the load capacity compared to a single-strand link of the same pitch, making these connecting links a reliable choice for duplex roller chain replacement and repair.\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\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard duplex (double-strand) roller chains to ISO 606 \/ ANSI B29.1 dimensions — 06B-2, 08B-2, 08A-2, 10A-2, 12A-2, 16A-2, 20A-2, and triple-strand 08B-3. Verify your chain pitch and strand count before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These A2 Stainless Steel Duplex Roller Chain Connecting Links\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\u003cstrong\u003eA2 Stainless Steel Construction\u003c\/strong\u003e — Made from AISI 304 (A2) stainless steel for reliable corrosion resistance in wet, humid, and mildly acidic environments where carbon-steel links fail prematurely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Pitch Range\u003c\/strong\u003e — Covers seven duplex pitch sizes from 9.525 mm (06B-2) to 31.75 mm (20A-2), plus the 08B-3 triple-strand at 12.7 mm, so one product family handles most duplex chain repair needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eFull Link \u0026amp; Half Link Buckle Options\u003c\/strong\u003e — Full link buckle (spring clip) for standard replacement; half link buckle (offset link) for adjusting chain length by a half pitch when an even number of links won't fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cstrong\u003eThree-Row (Triple-Strand) Variant\u003c\/strong\u003e — The 08B-3 option provides triple-strand capacity for high-torque drive applications where duplex links are insufficient.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Pack Sizes\u003c\/strong\u003e — Order 1, 2, or 5 pieces per SKU to match your maintenance stock requirements without over-ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✅\u003c\/span\u003e\u003cstrong\u003eISO 606 \/ ANSI B29.1 Compatible Dimensions\u003c\/strong\u003e — Manufactured to standard duplex roller chain dimensions, ensuring drop-in compatibility with existing chains without modification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Duplex Roller Chain Connecting Links\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eA2 Stainless Steel (AISI 304)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eISO 606 \/ ANSI B29.1 Duplex Roller Chain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Models\u003c\/th\u003e\n\u003ctd\u003e06B-2, 08B-2, 08A-2, 10A-2, 12A-2, 16A-2, 20A-2, 08B-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch Range\u003c\/th\u003e\n\u003ctd\u003e9.525 mm – 31.75 mm (3\/8 in – 1-1\/4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStrand Configuration\u003c\/th\u003e\n\u003ctd\u003eDuplex (double-strand); Triple-strand (08B-3 only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLink Style\u003c\/th\u003e\n\u003ctd\u003eFull Link Buckle \/ Half Link Buckle \/ Three-Row Full Link Buckle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural stainless (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Plate Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin Diameter\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\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 PCS \/ 2 PCS \/ 5 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I choose between the Full Link Buckle and the Half Link Buckle?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA \u003cstrong\u003efull link buckle\u003c\/strong\u003e (spring clip connecting link) replaces a standard link and keeps the chain at the same length — use this for most repairs. A \u003cstrong\u003ehalf link buckle\u003c\/strong\u003e (offset connecting link) adds half a pitch to the chain length, which is useful when you need to shorten or lengthen a chain by one half-pitch increment and a full link would leave the chain too tight or too loose. Check your chain tension requirements before selecting.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich model number matches my existing chain?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the model number on your existing chain or sprocket specification. The letter prefix indicates the standard: \u003cstrong\u003eB-series\u003c\/strong\u003e (e.g., 06B-2, 08B-2) follows ISO 606 (common in Europe and Asia), while \u003cstrong\u003eA-series\u003c\/strong\u003e (e.g., 08A-2, 10A-2) follows ANSI B29.1 (common in North America). The number before the letter indicates the pitch in sixteenths of an inch (e.g., 08 = 8\/16 = 1\/2 in = 12.7 mm). The \"-2\" suffix denotes duplex (double-strand).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs A2 stainless steel strong enough for my drive application?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA2 (AISI 304) stainless steel offers good tensile strength for moderate-load conveyor and drive applications. It is not as strong as hardened carbon steel under very high dynamic loads, but it significantly outperforms carbon steel in corrosive environments. For heavy-duty, high-speed, or shock-load applications, verify the rated working load of the specific model against your system requirements. Contact us to confirm tensile ratings for your selected model.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill these connecting links resist corrosion in food-processing or marine environments?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. A2 (AISI 304) stainless steel provides solid resistance to water, humidity, mild acids, and salt-air exposure, making these links suitable for food-processing wash-down lines, agricultural equipment, and marine deck applications. For highly chlorinated environments or strong acid\/alkali exposure, A4 (AISI 316) stainless steel would offer superior resistance — contact us if you need A4-grade links.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use these links on a single-strand (simplex) roller chain?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNo. These are \u003cstrong\u003eduplex (double-strand)\u003c\/strong\u003e connecting links designed specifically for two-strand roller chains. The inner plate width, pin length, and overall geometry are sized for duplex chains. Using a duplex link on a simplex chain will result in incorrect fit and potential failure. For simplex chain connecting links, please search our catalog for the corresponding simplex model.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the 08B-3 Three-Row Full Link Buckle used for?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe \u003cstrong\u003e08B-3\u003c\/strong\u003e is a triple-strand (three-row) connecting link for 08B-3 roller chains with a 12.7 mm pitch. Triple-strand chains are used in high-torque, high-load drive systems where duplex capacity is insufficient — common in heavy agricultural machinery, industrial presses, and large conveyor drives. Ensure your sprocket is also rated for triple-strand 08B-3 chain before ordering.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow many pieces should I order for a maintenance stock?\u003c\/summary\u003e\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor planned maintenance, ordering the \u003cstrong\u003e5 PCS pack\u003c\/strong\u003e provides the best per-unit value and ensures you have spares on hand for unplanned breakdowns. The \u003cstrong\u003e2 PCS pack\u003c\/strong\u003e suits smaller operations with infrequent chain repairs. The \u003cstrong\u003e1 PCS pack\u003c\/strong\u003e is ideal for a one-time repair or to verify fitment before stocking up. Select your preferred quantity in the Amount option above.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Style, Model (pitch), and Amount 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    {\"@type\": \"Question\", \"name\": \"How do I choose between the Full Link Buckle and the Half Link Buckle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A full link buckle (spring clip connecting link) replaces a standard link and keeps the chain at the same length — use this for most repairs. A half link buckle (offset connecting link) adds half a pitch to the chain length, useful when you need to adjust chain length by one half-pitch increment.\"}},\n    {\"@type\": \"Question\", \"name\": \"Which model number matches my existing chain?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Match the model number on your existing chain or sprocket. B-series (06B-2, 08B-2) follows ISO 606; A-series (08A-2, 10A-2) follows ANSI B29.1. The number before the letter indicates pitch in sixteenths of an inch. The -2 suffix denotes duplex.\"}},\n    {\"@type\": \"Question\", \"name\": \"Is A2 stainless steel strong enough for my drive application?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A2 (AISI 304) stainless steel offers good tensile strength for moderate-load conveyor and drive applications and significantly outperforms carbon steel in corrosive environments. For heavy-duty or shock-load applications, verify the rated working load against your system requirements.\"}},\n    {\"@type\": \"Question\", \"name\": \"Will these connecting links resist corrosion in food-processing or marine environments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. A2 (AISI 304) stainless steel provides solid resistance to water, humidity, mild acids, and salt-air exposure, making these links suitable for food-processing wash-down lines, agricultural equipment, and marine deck applications.\"}},\n    {\"@type\": \"Question\", \"name\": \"Can I use these links on a single-strand (simplex) roller chain?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. These are duplex (double-strand) connecting links designed specifically for two-strand roller chains. Using a duplex link on a simplex chain will result in incorrect fit and potential failure.\"}},\n    {\"@type\": \"Question\", \"name\": \"What is the 08B-3 Three-Row Full Link Buckle used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 08B-3 is a triple-strand connecting link for 08B-3 roller chains with a 12.7 mm pitch, used in high-torque drive systems where duplex capacity is insufficient — common in heavy agricultural machinery, industrial presses, and large conveyor drives.\"}},\n    {\"@type\": \"Question\", \"name\": \"How many pieces should I order for a maintenance stock?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 5 PCS pack provides the best per-unit value for planned maintenance. The 2 PCS pack suits smaller operations. The 1 PCS pack is ideal for a one-time repair or fitment verification.\"}}\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"Duplex  Full Link Buckle \/ 06B-2 - 9.525 Pitch \/ 1PCS","offer_id":52423182516498,"sku":"GYJLTSHXJZC1447x1","price":6.77,"currency_code":"USD","in_stock":true},{"title":"Duplex  Half Link Buckle \/ 06B-2 - 9.525 Pitch \/ 1PCS","offer_id":52423182549266,"sku":"GYJLTSHXJZC1448x1","price":9.83,"currency_code":"USD","in_stock":true},{"title":"Duplex  Full Link Buckle \/ 08B-2 - 12.7 Pitch \/ 1PCS","offer_id":52423182582034,"sku":"GYJLTSHXJZC1449x1","price":8.81,"currency_code":"USD","in_stock":true},{"title":"Duplex  Half Link Buckle \/ 08B-2 - 12.7 Pitch \/ 1PCS","offer_id":52423182614802,"sku":"GYJLTSHXJZC1450x1","price":10.51,"currency_code":"USD","in_stock":true},{"title":"Duplex  Full Link Buckle \/ 08A-2 - 12.7 Pitch \/ 1PCS","offer_id":52423182647570,"sku":"GYJLTSHXJZC1451x1","price":9.36,"currency_code":"USD","in_stock":true},{"title":"Duplex  Half Link Buckle \/ 08A-2 - 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