{"product_id":"316-stainless-steel-expansion-bolts-m6-m8-m10-m12-m14-m16","title":"316 Stainless Steel Expansion Bolts – Heavy-Duty Wedge Anchors M6 M8 M10 M12 M14 M16","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003c!-- ① OVERVIEW --\u003e\n\u003ch2\u003e316 Stainless Steel Expansion Bolts — Reliable Anchoring for Concrete \u0026amp; Masonry\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eWhether you're mounting a structural bracket to a concrete wall, securing railing posts on a seaside deck, or anchoring heavy equipment to a factory floor, a corroded or under-spec anchor bolt is a liability you can't afford. These 316 stainless steel expansion bolts are built for contractors, fabricators, and serious DIYers who need a fastener that holds firm in demanding conditions — without rusting out after the first wet season.\u003c\/p\u003e\n\u003cp\u003eEach bolt is a wedge-style mechanical anchor machined from solid 316 stainless steel (A4 grade), which includes molybdenum for superior chloride resistance compared to standard 304 SS. Available in thread diameters from M6 (≈1\/4\") to M16 (≈5\/8\") and lengths from 50mm (≈2\") to 150mm (≈5-7\/8\"), with 1 Pc or 3 Pcs per order depending on the size selected. The wedge sleeve expands radially as the nut is tightened, creating a positive mechanical lock in solid concrete, brick, or natural stone.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include anchoring structural steel to concrete foundations, securing outdoor handrails and fence posts in coastal environments, fastening HVAC equipment and pipe supports to concrete ceilings, and installing heavy shelving or machinery in commercial and industrial settings — all scenarios where a stainless steel wedge anchor for concrete outperforms zinc-plated alternatives over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ② COMPATIBILITY BAR --\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eCompatible Base Materials:\u003c\/strong\u003e Solid concrete · Solid brick · Natural stone · Hard masonry — \u003cem\u003eNot recommended for hollow block, AAC, or soft substrates.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c!-- ③ KEY FEATURES --\u003e\n\u003ch2\u003e✅ Key Features of These 316 Stainless Steel Expansion 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\u003eMarine-Grade 316 SS Construction\u003c\/strong\u003e — Contains 2–3% molybdenum, giving these stainless steel wedge anchors significantly better resistance to saltwater, chlorides, and chemical exposure than standard 304 fasteners.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePositive Wedge-Lock Mechanism\u003c\/strong\u003e — As the nut is torqued down, the expansion sleeve spreads radially against the drilled hole wall, creating a mechanical interlock that resists both tensile pull-out and shear forces.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Size Range — M6 to M16\u003c\/strong\u003e — Covers the most common anchor bolt sizes for light-duty brackets up to heavy structural connections, with lengths from 50mm (≈2\") to 150mm (≈5-7\/8\") to suit varying embedment requirements.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStandard Metric Thread (ISO Coarse)\u003c\/strong\u003e — Compatible with off-the-shelf metric nuts, washers, and threaded rod couplers; no proprietary tooling required for installation or replacement.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSuited for Structural \u0026amp; Outdoor Applications\u003c\/strong\u003e — Ideal for concrete anchor bolts for outdoor use including railing posts, equipment pads, signage, and facade brackets where long-term corrosion resistance is critical.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Smaller sizes (M6–M8 up to 80mm) are available in 3-piece packs for multi-point fixture installations; larger sizes ship as single pieces for heavy-duty single-anchor applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n\u003ch2\u003e📐 Technical Specifications — 316 Stainless Steel Wedge Expansion Anchors\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e316 Stainless Steel (A4 \/ AISI 316, molybdenum-alloyed)\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\u003eThread Diameter Range\u003c\/th\u003e\n\u003ctd\u003eM6 · M8 · M10 · M12 · M14 · M16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength Range\u003c\/th\u003e\n\u003ctd\u003e50mm (≈2\") — 150mm (≈5-7\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnchor Type\u003c\/th\u003e\n\u003ctd\u003eWedge expansion anchor (mechanical sleeve)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive \/ Setting Method\u003c\/th\u003e\n\u003ctd\u003eNut-driven (standard metric wrench or socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable Base Materials\u003c\/th\u003e\n\u003ctd\u003eSolid concrete, solid brick, natural stone, hard masonry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eMill finish (natural 316 SS — no coating required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e3 Pcs (M6×50–80mm, M8×60–80mm) · 1 Pc (M8×100–120mm and M10–M16 all lengths)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Hole Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options (matches nominal thread diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Torque\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm (varies by diameter and base material)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertifications \/ Standards\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\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eHeads up:\u003c\/strong\u003e Always verify hole diameter and embedment depth against your fixture load requirements before installation. When in doubt, consult a structural engineer — especially for overhead or safety-critical anchoring.\u003c\/div\u003e\n\u003c!-- ⑤ FAQ --\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size expansion bolt for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bolt diameter to your fixture's hole size — for example, an M8 bolt requires an 8mm hole drilled into the base material. For length, a general rule is that the embedment depth should be at least 10× the bolt diameter. For an M8 bolt, aim for at least 80mm embedment, so a 100mm bolt is typically a safe choice when accounting for fixture thickness. In inches: M8 ≈ 5\/16\", M10 ≈ 3\/8\", M12 ≈ 1\/2\", M16 ≈ 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load can these expansion bolts handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eLoad capacity depends on bolt diameter, embedment depth, and the compressive strength of the base material. In standard concrete (C20\/25), an M10 wedge anchor generally achieves a tensile load of 8–12 kN and a shear load of 6–10 kN. Larger diameters and deeper embedment increase capacity. Always consult a structural engineer for safety-critical or overhead applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these expansion bolts suitable for outdoor or marine environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These bolts are made from 316 stainless steel, which contains molybdenum for enhanced resistance to chloride-induced corrosion. They are generally suitable for coastal, marine, and outdoor applications where standard 304 stainless steel would corrode prematurely. For fully submerged or highly aggressive chemical environments, confirm suitability with us before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these bolts use — are they compatible with standard nuts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese expansion bolts use standard metric coarse threads (ISO 68-1). The M6–M16 designations refer to the nominal thread diameter in millimeters. They are compatible with standard metric nuts, flat washers, and spring washers of the same grade. No proprietary hardware is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these in hollow block, brick veneer, or aerated concrete (AAC)?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eWedge-style expansion anchors are designed for solid base materials such as poured concrete, solid brick, and natural stone. They are generally not recommended for hollow block, aerated concrete (AAC\/Hebel), or soft masonry, as the expansion mechanism requires solid material to grip. For hollow or lightweight substrates, a sleeve anchor or chemical anchor is typically the better choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install a wedge expansion bolt correctly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e1. Drill a hole matching the bolt's nominal diameter to the required depth using a hammer drill and carbide-tipped bit.\u003cbr\u003e2. Blow out dust and debris with compressed air or a blow pump — a clean hole is critical for full expansion.\u003cbr\u003e3. Insert the bolt through your fixture and into the hole.\u003cbr\u003e4. Tighten the nut with a wrench to the specified installation torque. As the nut advances, the wedge sleeve expands against the hole wall, locking the anchor in place.\u003cbr\u003e5. Do not over-torque — this can crack the surrounding concrete or strip the anchor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between 304 and 316 stainless steel for anchor bolts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e316 stainless steel adds 2–3% molybdenum to the 304 alloy, which significantly improves resistance to pitting and crevice corrosion in chloride-rich environments — saltwater, de-icing salts, swimming pool chemicals, and industrial atmospheres. For most indoor, dry applications, 304 is sufficient. For outdoor, coastal, or chemically exposed installations, 316 is the recommended grade and is worth the modest price premium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- ⑥ CTA BAR --\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"6*50mm \/ 3 Pcs","offer_id":52308802732306,"sku":"GLFBZBPBRTQJD012898x3","price":4.76,"currency_code":"USD","in_stock":true},{"title":"6*60mm \/ 3 Pcs","offer_id":52308802765074,"sku":"GLFBZBPBRTQJD012899x3","price":5.39,"currency_code":"USD","in_stock":true},{"title":"6*70mm \/ 3 Pcs","offer_id":52308802797842,"sku":"GLFBZBPBRTQJD012900x3","price":6.04,"currency_code":"USD","in_stock":true},{"title":"6*80mm \/ 3 Pcs","offer_id":52308802830610,"sku":"GLFBZBPBRTQJD012901x3","price":6.68,"currency_code":"USD","in_stock":true},{"title":"8*60mm \/ 3 Pcs","offer_id":52308802863378,"sku":"GLFBZBPBRTQJD012902x3","price":8.32,"currency_code":"USD","in_stock":true},{"title":"8*70mm \/ 3 Pcs","offer_id":52308802896146,"sku":"GLFBZBPBRTQJD012903x3","price":9.49,"currency_code":"USD","in_stock":true},{"title":"8*80mm \/ 3 Pcs","offer_id":52308802928914,"sku":"GLFBZBPBRTQJD012904x3","price":10.58,"currency_code":"USD","in_stock":true},{"title":"8*100mm \/ 1 Pcs","offer_id":52308802961682,"sku":"GLFBZBPBRTQJD012905x1","price":4.96,"currency_code":"USD","in_stock":true},{"title":"8*120mm \/ 1 Pcs","offer_id":52308802994450,"sku":"GLFBZBPBRTQJD012906x1","price":5.66,"currency_code":"USD","in_stock":true},{"title":"10*70mm \/ 1 Pcs","offer_id":52308803027218,"sku":"GLFBZBPBRTQJD012907x1","price":5.62,"currency_code":"USD","in_stock":true},{"title":"10*80mm \/ 1 Pcs","offer_id":52308803059986,"sku":"GLFBZBPBRTQJD012908x1","price":6.19,"currency_code":"USD","in_stock":true},{"title":"10*100mm \/ 1 Pcs","offer_id":52308803092754,"sku":"GLFBZBPBRTQJD012909x1","price":7.3,"currency_code":"USD","in_stock":true},{"title":"10*120mm \/ 1 Pcs","offer_id":52308803125522,"sku":"GLFBZBPBRTQJD012910x1","price":8.43,"currency_code":"USD","in_stock":true},{"title":"12*80mm \/ 1 Pcs","offer_id":52308803158290,"sku":"GLFBZBPBRTQJD012911x1","price":8.45,"currency_code":"USD","in_stock":true},{"title":"12*100mm \/ 1 Pcs","offer_id":52308803191058,"sku":"GLFBZBPBRTQJD012912x1","price":10.0,"currency_code":"USD","in_stock":true},{"title":"12*110mm \/ 1 Pcs","offer_id":52308803223826,"sku":"GLFBZBPBRTQJD012913x1","price":10.88,"currency_code":"USD","in_stock":true},{"title":"12*120mm \/ 1 Pcs","offer_id":52308803256594,"sku":"GLFBZBPBRTQJD012914x1","price":11.78,"currency_code":"USD","in_stock":true},{"title":"12*150mm \/ 1 Pcs","offer_id":52308803289362,"sku":"GLFBZBPBRTQJD012915x1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"14*100mm \/ 1 Pcs","offer_id":52308803322130,"sku":"GLFBZBPBRTQJD012916x1","price":14.77,"currency_code":"USD","in_stock":true},{"title":"14*120mm \/ 1 Pcs","offer_id":52308803354898,"sku":"GLFBZBPBRTQJD012917x1","price":17.31,"currency_code":"USD","in_stock":true},{"title":"14*150mm \/ 1 Pcs","offer_id":52308803387666,"sku":"GLFBZBPBRTQJD012918x1","price":20.69,"currency_code":"USD","in_stock":true},{"title":"16*100mm \/ 1 Pcs","offer_id":52308803420434,"sku":"GLFBZBPBRTQJD012919x1","price":18.18,"currency_code":"USD","in_stock":true},{"title":"16*120mm \/ 1 Pcs","offer_id":52308803453202,"sku":"GLFBZBPBRTQJD012920x1","price":20.74,"currency_code":"USD","in_stock":true},{"title":"16*150mm \/ 1 Pcs","offer_id":52308803485970,"sku":"GLFBZBPBRTQJD012921x1","price":24.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Bild4von5.jpg?v=1780807522","url":"https:\/\/homediyer.com\/de\/products\/316-stainless-steel-expansion-bolts-m6-m8-m10-m12-m14-m16","provider":"HomeDIYer","version":"1.0","type":"link"}