{"product_id":"stainless-steel-lifting-eye-bolts-a2-304-metric-m3-m42","title":"Stainless Steel Lifting Eye Bolts — A2 304 Grade, Metric M3 to M42","description":"\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 choose the right eye bolt size for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the thread diameter to your tapped hole or nut. For example, an M8 eye bolt threads into an M8 hole. As a general rule, the bolt diameter should be sized so the working load limit (WLL) exceeds your load with a safety factor of at least 4:1. If you are unsure, choose the next size up.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the load capacity of these lifting eye bolts?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Working load limits vary by size. As a general reference, M6 eye bolts typically handle around 100–150 kg, M10 around 300–500 kg, and M20 around 1,500–2,000 kg when loaded axially. Always verify the WLL for your specific size and never exceed it. Contact us to confirm rated capacity for your size.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these eye bolts suitable for outdoor or marine use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. A2 304 stainless steel offers good corrosion resistance in most outdoor and light marine environments. For highly aggressive saltwater or chemical exposure, A4 316 stainless steel is generally recommended. These bolts are well-suited for outdoor rigging, boat hardware, and garden or patio lifting applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What thread standard do these eye bolts use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These are metric coarse-thread eye bolts following the ISO standard (e.g., M8 × 1.25, M10 × 1.5). They are not compatible with UNC\/UNF inch-thread fittings. Always confirm the thread pitch matches your application before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these eye bolts for angular or side loading?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These are straight-shank eye bolts designed primarily for in-line (axial) loading. Angular loading significantly reduces the safe working load — typically by 25–75% depending on the angle. For consistent angular or side loads, a swivel hoist ring is generally a safer choice.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I convert metric eye bolt sizes to inches?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Divide the millimeter diameter by 25.4 to get inches. For example: M6 ≈ 0.24\\\" (roughly 1\/4\\\"), M8 ≈ 0.31\\\" (roughly 5\/16\\\"), M10 ≈ 0.39\\\" (roughly 3\/8\\\"), M12 ≈ 0.47\\\" (roughly 1\/2\\\"). These are approximate — always use the metric designation when ordering to ensure correct fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need a nut with these eye bolts?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"It depends on your installation. If threading into a tapped hole, no nut is needed. If passing through a clearance hole, a matching metric hex nut and washer are recommended to distribute load and prevent pull-through. Nuts are not included — see variant options for available sizes.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eStainless Steel Lifting Eye Bolts — Reliable Metric Rigging Hardware for M3 to M42 Applications\u003c\/h2\u003e\n    \u003cp\u003eWhether you're rigging equipment in a workshop, securing loads on a trailer, or installing lifting points on marine hardware, finding a stainless steel lifting eye bolt that won't corrode, strip, or fail under load is non-negotiable. Contractors, riggers, fabricators, and serious DIYers all face the same problem: undersized or low-grade hardware that looks fine until it doesn't. These A2 304 stainless steel lifting eye bolts are built for jobs where reliability matters.\u003c\/p\u003e\n    \u003cp\u003eEach eye bolt features a closed round ring head machined from A2 (304) stainless steel — the same grade used in food processing and marine fittings. Available in metric sizes from M3 (≈0.12\") through M42 (≈1.65\"), sold individually (1PCS) or in pairs (2PCS). Thread standard is metric coarse (ISO), with shank length and ring dimensions proportional to each size. Exact shank length varies by size — see variant options or contact us to confirm.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include overhead lifting points in workshops and garages, anchor points for rope and cable rigging on boats and docks, load-securing hardware on trailers and flatbeds, and structural tie-down points in construction and fabrication. The closed-ring design makes these a go-to choice for metric eye bolt rigging hardware across a wide range of industries.\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\u003eThread Compatibility:\u003c\/strong\u003e Metric coarse thread (ISO standard) — M3 through M42. Not compatible with UNC\/UNF inch-thread fittings. Confirm your thread pitch before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These Stainless Steel Lifting Eye Bolts\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔗\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eClosed-Ring Design\u003c\/strong\u003e — The fully closed round eye prevents rope, cable, or shackle from slipping out under load, making it safer for overhead lifting and rigging applications.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eA2 304 Stainless Steel Construction\u003c\/strong\u003e — Resists rust, oxidation, and mild chemical exposure without surface coatings that can chip or peel — suitable for outdoor, marine, and humid environments.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Metric Size Range (M3–M42)\u003c\/strong\u003e — Covers light-duty instrument rigging at M3 all the way to heavy structural lifting at M42, so you can source the right metric eye bolt size from a single supplier.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eISO Metric Coarse Thread\u003c\/strong\u003e — Threads conform to standard metric coarse pitch, ensuring compatibility with metric tapped holes, hex nuts, and threaded inserts used in most industrial and fabrication settings.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSmooth, Consistent Thread Form\u003c\/strong\u003e — Clean thread engagement reduces installation torque and minimizes the risk of cross-threading, especially important in stainless steel fasteners where galling can occur if threads are rough.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e — Available in 1PCS or 2PCS per order, letting you buy exactly what you need for a single anchor point or a matched pair of lifting eyes without overstocking.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eImportant:\u003c\/strong\u003e Always verify the working load limit (WLL) for your selected size before use. These eye bolts are designed for axial (in-line) loading. Angular loading reduces rated capacity — consult a qualified rigger for critical lifting applications.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — Metric Stainless Steel Eye Bolts\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eLifting Eye Bolt — Closed Round Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eRound Head (Closed Eye)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eA2 304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural stainless (no coating)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eMetric Coarse (ISO)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003eM3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M24, M27, M30, M36, M42\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSize Range (approx.)\u003c\/th\u003e\n\u003ctd\u003eM3 (≈0.12\") — M42 (≈1.65\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShank Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRing Inner Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWorking Load Limit\u003c\/th\u003e\n\u003ctd\u003eVaries by size — Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eEnd Type\u003c\/th\u003e\n\u003ctd\u003eClosed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSystem of Measurement\u003c\/th\u003e\n\u003ctd\u003eMetric\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1PCS or 2PCS (select above)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eChina\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 choose the right eye bolt size for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMatch the thread diameter to your tapped hole or nut. For example, an M8 eye bolt threads into an M8 tapped hole. As a general rule, size the bolt so its working load limit (WLL) exceeds your load with a safety factor of at least 4:1. When in doubt, go one size up. If you need help selecting, contact us with your load requirements.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the load capacity of these lifting eye bolts?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eWorking load limits vary by size. As a general reference, M6 eye bolts typically handle around 100–150 kg, M10 around 300–500 kg, and M20 around 1,500–2,000 kg when loaded axially. These are typical industry ranges — contact us to confirm the rated WLL for your specific size before use in any lifting application.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these eye bolts suitable for outdoor or marine use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. A2 304 stainless steel provides good corrosion resistance in most outdoor and light marine environments, including rain, humidity, and mild salt spray. For prolonged immersion or highly aggressive saltwater exposure, A4 316 stainless steel is generally recommended. These bolts are well-suited for boat hardware, dock rigging, outdoor lifting points, and garden or patio installations.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat thread standard do these eye bolts use — are they compatible with my hardware?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese are metric coarse-thread eye bolts following the ISO standard (e.g., M8 × 1.25 pitch, M10 × 1.5 pitch). They are \u003cstrong\u003enot\u003c\/strong\u003e compatible with UNC or UNF inch-thread fittings. If your existing hardware uses inch threads, these will not fit. Always confirm the thread pitch matches your application before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these eye bolts for angular or side loading?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese are straight-shank eye bolts designed primarily for in-line (axial) loading. Angular loading significantly reduces the safe working load — typically by 25–75% depending on the angle from vertical. For consistent angular or multi-directional loads, a swivel hoist ring is generally a safer choice. Consult a qualified rigger for critical lifting setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I convert these metric sizes to inches?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eDivide the millimeter diameter by 25.4 to get the inch equivalent. Quick reference: M6 ≈ 0.24\" (~1\/4\"), M8 ≈ 0.31\" (~5\/16\"), M10 ≈ 0.39\" (~3\/8\"), M12 ≈ 0.47\" (~1\/2\"), M16 ≈ 0.63\" (~5\/8\"), M20 ≈ 0.79\" (~3\/4\"). These are approximate — always order by the metric designation to ensure correct fit.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo I need a nut or washer with these eye bolts?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eIt depends on your installation. If threading into a tapped hole, no nut is needed — just torque to spec. If passing through a clearance hole, a matching metric hex nut and flat washer are recommended to distribute load and prevent pull-through. Nuts and washers are not included with this listing.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M3 \/ 304 stainless steel \/ 1PCS","offer_id":52309398323474,"sku":"GYJLTZYBXG0374x1","price":3.37,"currency_code":"USD","in_stock":true},{"title":"M4 \/ 304 stainless steel \/ 1PCS","offer_id":52309398356242,"sku":"GYJLTZYBXG0375x1","price":7.45,"currency_code":"USD","in_stock":true},{"title":"M5 \/ 304 stainless steel \/ 1PCS","offer_id":52309398389010,"sku":"GYJLTZYBXG0376x1","price":7.45,"currency_code":"USD","in_stock":true},{"title":"M6 \/ 304 stainless steel \/ 1PCS","offer_id":52309398421778,"sku":"GYJLTZYBXG0377x1","price":7.45,"currency_code":"USD","in_stock":true},{"title":"M8 \/ 304 stainless steel \/ 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