{"product_id":"stainless-steel-open-hook-expansion-anchor-bolts-m6-m8-m10-m12","title":"Stainless Steel Open Hook Expansion Anchor Bolts — M6 M8 M10 M12 (304 SS A2)","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 size open hook expansion bolt?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the bolt diameter to your drill bit size — for example, an M8 bolt typically requires an 8mm (5\/16\\u201d) hole. Choose the length based on the base material thickness plus the depth needed for secure expansion, generally at least 30mm (≈1.2\\u201d) of embedment into concrete or masonry.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What load can these hook expansion bolts handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Load capacity depends on the bolt size, base material strength, and embedment depth. In standard concrete, an M8 hook expansion bolt can typically support 150–300 lbs in tension. Always consult a structural engineer for safety-critical or overhead load applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these expansion anchor bolts suitable for outdoor or wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. These bolts are made from 304 stainless steel (A2 grade), which provides good resistance to rust and corrosion in most outdoor and humid environments. For coastal or highly chlorinated environments, A4 (316 SS) grade is generally recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What thread standard do these hook anchor bolts use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These bolts use standard metric coarse threads (ISO 68-1). M6, M8, M10, and M12 designations refer to the nominal thread diameter in millimeters, compatible with standard metric nuts and hardware.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these in brick or block walls, not just concrete?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, expansion anchor bolts generally work in solid brick, concrete block, and stone. Performance in hollow block or lightweight aerated concrete may be reduced — in those cases, a chemical anchor or toggle bolt is typically a better choice.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many pieces do I need to order?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each listing lets you choose 1, 3, 5, or 10 pieces per order. For single fixtures like a hanging lamp or swing, 1–2 bolts are usually sufficient. For shelving brackets or pergola hardware, ordering a pack of 5 or 10 is more economical.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between M6, M8, M10, and M12 for this type of bolt?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The M number refers to the nominal thread diameter in millimeters: M6 ≈ 1\/4\\u201d, M8 ≈ 5\/16\\u201d, M10 ≈ 3\/8\\u201d, M12 ≈ 1\/2\\u201d. Larger diameters provide greater load capacity and require a correspondingly larger drill bit and hole.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003c!-- ① OVERVIEW --\u003e\n  \u003ch2\u003eOpen Hook Expansion Anchor Bolts — Secure Hanging Points in Concrete \u0026amp; Masonry\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003cp\u003eWhether you're mounting a heavy-duty swing, suspending a chandelier from a concrete ceiling, or anchoring a pergola beam to a block wall, a weak or wrong fastener is a liability you can't afford. These \u003cstrong\u003eopen hook expansion anchor bolts\u003c\/strong\u003e give DIYers, contractors, and facility managers a reliable, corrosion-resistant anchor point in solid base materials — no guesswork, no wobble.\u003c\/p\u003e\n    \u003cp\u003eEach piece is a one-body expansion anchor bolt with an open hook head, machined from \u003cstrong\u003e304 Stainless Steel (A2 grade)\u003c\/strong\u003e. Available in four metric thread sizes — \u003cstrong\u003eM6 (≈1\/4\")\u003c\/strong\u003e, \u003cstrong\u003eM8 (≈5\/16\")\u003c\/strong\u003e, \u003cstrong\u003eM10 (≈3\/8\")\u003c\/strong\u003e, and \u003cstrong\u003eM12 (≈1\/2\")\u003c\/strong\u003e — and sold in quantities of 1, 3, 5, or 10 pieces so you can order exactly what your project requires. The open hook profile accepts rope, chain, carabiner clips, or wire rope directly without additional hardware.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include hanging porch swings and hammock chairs from concrete beams, suspending pendant lights or ceiling fans in commercial spaces, securing safety cables and fall-arrest anchor points, and attaching garden structures or outdoor shade sails to masonry walls. The metric thread sizing makes these \u003cstrong\u003estainless steel hook anchor bolts\u003c\/strong\u003e compatible with standard metric hardware across residential and light commercial projects.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ② COMPATIBILITY BAR --\u003e\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n    \u003cstrong\u003eCompatible with:\u003c\/strong\u003e Solid concrete, brick, natural stone, and dense concrete block. Requires a hammer drill and matching metric masonry bit (M6 → 6mm, M8 → 8mm, M10 → 10mm, M12 → 12mm). Metric coarse thread (ISO standard).\n  \u003c\/div\u003e\n\n  \u003c!-- ③ KEY FEATURES --\u003e\n  \u003ch2\u003e✅ Key Features of These Open Hook Expansion Anchor Bolts\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003e304 Stainless Steel A2 Construction\u003c\/strong\u003e — Manufactured from A2-grade 304 SS for solid resistance to rust, oxidation, and mild chemical exposure — a step above zinc-plated carbon steel anchors in longevity.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🪝\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eOpen Hook Head Design\u003c\/strong\u003e — The open-loop hook allows direct attachment of chains, ropes, carabiners, or wire rope without needing a separate shackle or connector, saving time on installation.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eFour Metric Sizes in One Listing\u003c\/strong\u003e — Choose M6, M8, M10, or M12 to match your load requirements and existing hardware. Each size uses standard metric coarse thread pitch for broad compatibility with metric nuts and fittings.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eExpansion Sleeve Anchor Mechanism\u003c\/strong\u003e — The wedge-expansion design locks the bolt firmly in place as the nut is tightened, distributing load into the surrounding base material for a secure, vibration-resistant hold in concrete and masonry.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Order 1, 3, 5, or 10 pieces per variant to match your project scope — from a single swing anchor to a full run of ceiling suspension points — without overstocking.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eBroad Application Range\u003c\/strong\u003e — Suited for hanging swings, hammocks, pendant lights, safety cables, and outdoor shade structures where a fixed, load-bearing hook anchor point in concrete or masonry is required.\u003c\/span\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n  \u003ch2\u003e📐 Technical Specifications — Open Hook Expansion Anchor Bolts\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    Bolt shank length and hook opening dimensions vary by size. Please confirm your required embedment depth before ordering. Contact us if you need specific dimensional drawings.\n  \u003c\/div\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\u003eOpen Hook Expansion Anchor Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel (A2 Grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural brushed stainless (no coating)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Thread Sizes\u003c\/th\u003e\n\u003ctd\u003eM6 (≈1\/4\"), M8 (≈5\/16\"), M10 (≈3\/8\"), M12 (≈1\/2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eMetric coarse thread (ISO 68-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRequired Drill Bit\u003c\/th\u003e\n\u003ctd\u003e6mm \/ 8mm \/ 10mm \/ 12mm masonry bit (matches bolt size)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAnchor Mechanism\u003c\/th\u003e\n\u003ctd\u003eWedge expansion sleeve\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eOpen hook (loop)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShank Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHook Opening Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSuitable Base Materials\u003c\/th\u003e\n\u003ctd\u003eSolid concrete, brick, natural stone, dense concrete block\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePack Quantity Options\u003c\/th\u003e\n\u003ctd\u003e1 \/ 3 \/ 5 \/ 10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ⑤ FAQ --\u003e\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right size open hook expansion bolt?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMatch the bolt diameter to your drill bit size — for example, an M8 bolt requires an 8mm (5\/16\") masonry bit. Choose the length based on the base material thickness plus the depth needed for secure expansion, generally at least 30mm (≈1.2\") of embedment into concrete or masonry. As a quick reference: M6 ≈ 1\/4\", M8 ≈ 5\/16\", M10 ≈ 3\/8\", M12 ≈ 1\/2\".\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat load can these hook expansion bolts handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eLoad capacity depends on the bolt size, base material strength, and embedment depth. In standard concrete, an M8 hook expansion bolt can typically support 150–300 lbs in tension. Larger sizes (M10, M12) generally offer higher capacity. Always consult a structural engineer for safety-critical or overhead load applications such as fall-arrest systems.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these expansion anchor bolts suitable for outdoor or wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. These bolts are made from 304 stainless steel (A2 grade), which provides good resistance to rust and corrosion in most outdoor and humid environments, including rain-exposed patios and garden structures. For coastal areas or environments with high chloride exposure, A4 (316 SS) grade is generally recommended for longer service life.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat thread standard do these hook anchor bolts use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese bolts use standard metric coarse threads (ISO 68-1). The M6, M8, M10, and M12 designations refer to the nominal thread diameter in millimeters, making them compatible with standard metric nuts, washers, and hardware widely available in the US and internationally.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these in brick or block walls, not just concrete?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes, expansion anchor bolts generally work well in solid brick, dense concrete block, and natural stone. Performance in hollow block, lightweight aerated concrete (AAC), or soft brick may be reduced — in those cases, a chemical anchor or toggle bolt is typically a more reliable choice. When in doubt, test with a single bolt before committing to a full installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many pieces should I order for my project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eEach listing lets you choose 1, 3, 5, or 10 pieces. For a single hanging point — such as a porch swing or pendant light — 1 or 2 bolts are usually sufficient. For shelving brackets, pergola hardware, or safety cable runs, ordering a pack of 5 or 10 is more economical and ensures you have spares on hand.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between M6, M8, M10, and M12 for this type of bolt?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe M number refers to the nominal thread diameter in millimeters. In approximate inch equivalents: M6 ≈ 1\/4\", M8 ≈ 5\/16\", M10 ≈ 3\/8\", M12 ≈ 1\/2\". Larger diameters provide greater load capacity and require a correspondingly larger drill bit and hole. Choose based on the weight you need to support and the hardware (chain, carabiner, etc.) you plan to attach.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- ⑥ CTA BAR --\u003e\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":"304 Stainless Steel A2 \/ M6 \/ 1","offer_id":52308817182994,"sku":"KFCGB16370x1","price":1.73,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M6 \/ 3","offer_id":52308817215762,"sku":"KFCGB16370x3","price":4.77,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M6 \/ 5","offer_id":52308817248530,"sku":"KFCGB16370x5","price":7.47,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M6 \/ 10","offer_id":52308817281298,"sku":"KFCGB16370x10","price":14.2,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M8 \/ 1","offer_id":52308817314066,"sku":"KFCGB16371x1","price":3.37,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M8 \/ 3","offer_id":52308817346834,"sku":"KFCGB16371x3","price":8.51,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M8 \/ 5","offer_id":52308817379602,"sku":"KFCGB16371x5","price":13.6,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M8 \/ 10","offer_id":52308817412370,"sku":"KFCGB16371x10","price":26.47,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M10 \/ 1","offer_id":52308817445138,"sku":"KFCGB16372x1","price":5.37,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M10 \/ 3","offer_id":52308817477906,"sku":"KFCGB16372x3","price":14.5,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M10 \/ 5","offer_id":52308817510674,"sku":"KFCGB16372x5","price":23.72,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M10 \/ 10","offer_id":52308817543442,"sku":"KFCGB16372x10","price":46.61,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M12 \/ 1","offer_id":52308817576210,"sku":"KFCGB16373x1","price":8.31,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M12 \/ 3","offer_id":52308817608978,"sku":"KFCGB16373x3","price":23.32,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M12 \/ 5","offer_id":52308817641746,"sku":"KFCGB16373x5","price":38.38,"currency_code":"USD","in_stock":true},{"title":"304 Stainless Steel A2 \/ M12 \/ 10","offer_id":52308817674514,"sku":"KFCGB16373x10","price":75.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/1_7_4185bcb8-cd45-46fb-9806-2eea7bfe8a0b.jpg?v=1780807561","url":"https:\/\/homediyer.com\/products\/stainless-steel-open-hook-expansion-anchor-bolts-m6-m8-m10-m12","provider":"HomeDIYer","version":"1.0","type":"link"}