{"product_id":"lag-screws-4-inch-25pcs-heavy-duty-construction-screw-structural-wood-screw-14-x-4-rust-resistant-washer-head-black-coated-exterior-wood-lag-screws-hex-socket","title":"Lag Screws 4 Inch, 25PCS Heavy Duty Construction Screw, Structural Wood Screw #14 x 4, Rust Resistant, Washer Head, Black Coated Exterior Wood\/Lag Screws Hex Socket","description":"\u003c!-- 样式完全封装，避免与Shopify主题冲突 --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- 产品描述容器 - 所有样式限定在此块内，使用独特前缀 --\u003e\n\u003cdiv class=\"lag-screw-pro-description\"\u003e\n\u003c!-- 头部区域：标题与简短强调 --\u003e\n\u003cdiv class=\"ls-header\"\u003e\n\u003ch1 class=\"ls-product-title\"\u003e🔩 GOOBETTER 4 Inch Lag Screws (25PCS) – Heavy Duty Structural Wood Screw #14 x 4, Rust Resistant Black Coated, Washer Head Exterior Screws with T30 Star Drive\u003c\/h1\u003e\n\u003cdiv class=\"ls-badge\"\u003e🏆 1000-Hour Salt Spray Test Passed | Anti-Corrosion Coating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 产品概述区域：自然销售型描述，突出使用场景与人群 --\u003e\n\u003cdiv class=\"ls-overview\"\u003e\n\u003cp\u003eWhether you're building a sturdy deck, timber frame, or securing heavy outdoor structures, the \u003cstrong\u003eGOOBETTER 4-inch lag screws (25-pack)\u003c\/strong\u003e deliver professional-grade holding power without the frustration of stripped heads or rust. Designed for contractors, woodworkers, and serious DIYers, these #14 x 4 structural wood screws eliminate breaking and slipping—thanks to the T30 Star drive and knurled shank that reduces torque and prevents wood from cracking. The advanced black coating withstands 1000 hours of salt spray testing, so you can trust them in rain, humidity, and coastal environments. Say goodbye to pre-drilling nightmares and hello to a flush, clean finish every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 双列布局：左侧图片占位（卖家可轻松替换为真实图），右侧快速卖点 --\u003e\n\u003cdiv class=\"ls-grid-2col\"\u003e\n\u003cdiv class=\"ls-highlights\"\u003e\n\u003ch3\u003e⚡ Why Professionals Choose These Lag Screws\u003c\/h3\u003e\n\u003cul class=\"ls-highlight-list\"\u003e\n\u003cli\u003e✅ 1000h salt spray resistant – perfect for decks \u0026amp; outdoor framing\u003c\/li\u003e\n\u003cli\u003e✅ T30 Star drive → zero cam-out or slippage\u003c\/li\u003e\n\u003cli\u003e✅ Knurled shank reduces torque \u0026amp; prevents splitting\u003c\/li\u003e\n\u003cli\u003e✅ Modified truss washer head leaves a flush, neat surface\u003c\/li\u003e\n\u003cli\u003e✅ Includes 1 T30 Star drive bit + eco-friendly reusable box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 产品特点：竖向排列（SEO友好，便于谷歌收录关键词） --\u003e\n\u003cdiv class=\"ls-features\"\u003e\n\u003ch2\u003e🔧 Key Features of 4 Inch Structural Lag Screws\u003c\/h2\u003e\n\u003cdiv class=\"ls-feature-item\"\u003e\n\u003cspan class=\"ls-feat-icon\"\u003e🛡️\u003c\/span\u003e\n\u003cdiv class=\"ls-feat-content\"\u003e\n\u003cstrong\u003eAnti-Corrosion Black Coating\u003c\/strong\u003e\u003cbr\u003ePassed 1000-Hour Salt Spray Test – no coating failure. Provides an exceptional anti-rust barrier that ensures long-term durability even in harsh, humid, or coastal environments.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-feature-item\"\u003e\n\u003cspan class=\"ls-feat-icon\"\u003e⚙️\u003c\/span\u003e\n\u003cdiv class=\"ls-feat-content\"\u003e\n\u003cstrong\u003eT30 Star Drive + Knurled Shank\u003c\/strong\u003e\u003cbr\u003eThe star drive system eliminates bit slippage and cam-out, offering a safe and efficient fastening process. The knurled shank reduces torque required for drilling and prevents wood from cracking, even in dense hardwoods.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-feature-item\"\u003e\n\u003cspan class=\"ls-feat-icon\"\u003e🏠\u003c\/span\u003e\n\u003cdiv class=\"ls-feat-content\"\u003e\n\u003cstrong\u003eWide Application – Indoors \u0026amp; Outdoors\u003c\/strong\u003e\u003cbr\u003eIdeal for deck building, log construction, timber framing, pole barns, fence installation, heavy shelving, and outdoor furniture. Works perfectly with pressure-treated lumber, hardwoods, and softwoods.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-feature-item\"\u003e\n\u003cspan class=\"ls-feat-icon\"\u003e🔩\u003c\/span\u003e\n\u003cdiv class=\"ls-feat-content\"\u003e\n\u003cstrong\u003eModified Truss Washer Head \u0026amp; Star Drive\u003c\/strong\u003e\u003cbr\u003eThe modified truss washer head sits flush against the surface, creating a clean and professional finish. Combined with the T30 drive, installation is quick, secure, and smooth.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-feature-item\"\u003e\n\u003cspan class=\"ls-feat-icon\"\u003e📦\u003c\/span\u003e\n\u003cdiv class=\"ls-feat-content\"\u003e\n\u003cstrong\u003eGOOBETTER Quality \u0026amp; Eco-Friendly Packaging\u003c\/strong\u003e\u003cbr\u003eEach box includes 25 lag screws and 1 T30 star drive bit. Packaged in reusable, environmentally friendly materials that save storage space and reduce waste.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 规格参数表格（不包含原产地字段，避免显示中国） --\u003e\n\u003cdiv class=\"ls-specs\"\u003e\n\u003ch2\u003e📐 Technical Specifications – Lag Screws 4 Inch #14 x 4\u003c\/h2\u003e\n\u003ctable class=\"ls-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eSize (Length)\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003e4 inches (101.6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eThread Diameter\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003e#14 (Heavy Duty)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eQuantity per Box\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003e25 pieces + 1 T30 star drive bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eHead Type\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003eModified Truss Washer Head – flush finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eDrive Style\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003eT30 Star Drive (included bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eCoating\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003eBlack Anti-Corrosion Coating, 1000H Salt Spray Test passed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eMaterial\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003eHeavy-duty heat-treated carbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eRecommended Use\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003eDecking, timber framing, log construction, outdoor furniture, pole barns, fencing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"ls-spec-label\"\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd class=\"ls-spec-value\"\u003e1 x T30 star drive bit, reusable storage box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 常见问题 FAQ (全部展开，无折叠，至少4个真实消除疑虑问题) --\u003e\n\u003cdiv class=\"ls-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions – Heavy Duty Lag Screws\u003c\/h2\u003e\n\u003cdiv class=\"ls-faq-item\"\u003e\n\u003cdiv class=\"ls-faq-question\"\u003e🔹 Do I need to pre-drill before installing these 4-inch lag screws?\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-answer\"\u003eThanks to the specially designed knurled shank, these structural wood screws require less torque and significantly reduce wood splitting. For extremely dense hardwoods (like ipe or oak) or near the edge of the board, a small pilot hole is recommended—but for most softwoods and pressure-treated lumber, you can drive them directly. The star drive ensures smooth installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-item\"\u003e\n\u003cdiv class=\"ls-faq-question\"\u003e🔹 Will the black coating rust after months of outdoor exposure?\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-answer\"\u003eNo. Our lag screws passed the strict 1000-hour salt spray test without coating failure. This means they offer superior rust and corrosion resistance, even in wet, humid, or coastal environments. Perfect for decks, garden structures, and exterior wood projects that face rain or snow.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-item\"\u003e\n\u003cdiv class=\"ls-faq-question\"\u003e🔹 What driver bit do I need? Is it included?\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-answer\"\u003eThe screws use a T30 Star drive (torx style). Yes, each box comes with one \u003cstrong\u003eT30 star drive bit\u003c\/strong\u003e — so you can start working right away. The star drive prevents cam-out and slipping, making the fastening process much safer than Phillips or hex heads.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-item\"\u003e\n\u003cdiv class=\"ls-faq-question\"\u003e🔹 Can I use these lag screws for pressure-treated lumber and ground contact?\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-answer\"\u003eAbsolutely. These #14 x 4 structural screws are rated for exterior applications, including pressure-treated wood. The anti-corrosion black coating meets harsh condition requirements, and the washer head provides a tight hold. For projects like raised garden beds, deck substructures, or fence posts, these screws are an excellent choice.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-item\"\u003e\n\u003cdiv class=\"ls-faq-question\"\u003e🔹 Are these screws strong enough for load-bearing timber framing?\u003c\/div\u003e\n\u003cdiv class=\"ls-faq-answer\"\u003eYes, these heavy-duty construction screws are designed for structural applications. With #14 diameter, 4-inch length, and heat-treated carbon steel body, they provide exceptional shear and tensile strength. Ideal for attaching ledger boards, building pergolas, or any timber-to-timber connection that requires reliable holding power.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 结尾品牌信息与环保承诺 --\u003e\n\u003cdiv class=\"ls-footer-note\"\u003e🛠️ \u003cstrong\u003eGOOBETTER\u003c\/strong\u003e stands behind every screw – strict quality control ensures you get consistent, reliable fasteners for your most demanding wood projects. If you have any questions, our US-based support team is ready to help.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n    \/* 完全封装样式 - 所有规则仅作用于 .lag-screw-pro-description 内部，避免与Shopify主题冲突 *\/\n    .lag-screw-pro-description {\n        max-width: 1280px;\n        margin: 0 auto;\n        background: #ffffff;\n        color: #1e2a3a;\n        font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;\n        line-height: 1.5;\n        padding: 1.25rem;\n        box-sizing: border-box;\n    }\n    .lag-screw-pro-description * {\n        box-sizing: border-box;\n    }\n    .ls-product-title {\n        font-size: 1.8rem;\n        font-weight: 700;\n        margin: 0 0 0.5rem 0;\n        color: #0a2b3e;\n        line-height: 1.2;\n        letter-spacing: -0.01em;\n    }\n    .ls-badge {\n        background: #f0f4f8;\n        display: inline-block;\n        padding: 0.3rem 0.9rem;\n        border-radius: 30px;\n        font-size: 0.85rem;\n        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{\n        font-size: 4rem;\n        display: block;\n        margin-bottom: 0.5rem;\n    }\n    .ls-img-text {\n        font-size: 0.85rem;\n        color: #5b6e8c;\n    }\n    .ls-highlights {\n        flex: 1;\n        background: #ffffff;\n        border-radius: 24px;\n        padding: 0.2rem 0 0.2rem 0;\n    }\n    .ls-highlights h3 {\n        font-size: 1.4rem;\n        font-weight: 600;\n        margin: 0 0 0.8rem 0;\n        color: #1b4d3e;\n    }\n    .ls-highlight-list {\n        list-style: none;\n        padding: 0;\n        margin: 0;\n    }\n    .ls-highlight-list li {\n        margin-bottom: 0.7rem;\n        font-size: 0.98rem;\n        display: flex;\n        align-items: center;\n        gap: 0.5rem;\n    }\n    \/* 竖向排列的特点区块 *\/\n    .ls-features {\n        margin: 2rem 0 2rem 0;\n    }\n    .ls-features h2 {\n        font-size: 1.6rem;\n        font-weight: 600;\n        border-left: 5px solid #2c6e49;\n        padding-left: 1rem;\n        margin: 0 0 1.2rem 0;\n     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{\n        width: 100%;\n        border-collapse: collapse;\n        margin: 1rem 0 1rem 0;\n        font-size: 0.95rem;\n    }\n    .ls-specs-table tr {\n        border-bottom: 1px solid #eef2f6;\n    }\n    .ls-specs-table tr:last-child {\n        border-bottom: none;\n    }\n    .ls-spec-label {\n        width: 40%;\n        padding: 0.9rem 1.2rem;\n        font-weight: 600;\n        background-color: #fafcff;\n        color: #1f4a3c;\n        border-right: 1px solid #eef2f6;\n    }\n    .ls-spec-value {\n        padding: 0.9rem 1.2rem;\n        background-color: #ffffff;\n        color: #2d4a5c;\n    }\n    \/* FAQ全展开 无折叠 *\/\n    .ls-faq {\n        margin: 2rem 0 1.8rem 0;\n    }\n    .ls-faq h2 {\n        font-size: 1.6rem;\n        font-weight: 600;\n        margin: 0 0 1.2rem 0;\n        color: #0f2c2f;\n        border-left: 5px solid #2c6e49;\n        padding-left: 1rem;\n    }\n    .ls-faq-item {\n        background: #ffffff;\n        border: 1px solid #e9edf2;\n        border-radius: 18px;\n        margin-bottom: 1rem;\n        padding: 1rem 1.2rem;\n        transition: all 0.1s ease;\n    }\n    .ls-faq-question {\n        font-weight: 700;\n        font-size: 1.05rem;\n        color: #1e4a3b;\n        margin-bottom: 0.6rem;\n    }\n    .ls-faq-answer {\n        font-size: 0.95rem;\n        color: #2b4b5c;\n        line-height: 1.5;\n        padding-left: 0.2rem;\n    }\n    .ls-footer-note {\n        margin-top: 2rem;\n        background: #f7fafd;\n        border-radius: 28px;\n        padding: 1rem 1.5rem;\n        text-align: center;\n        font-size: 0.9rem;\n        color: #305f6b;\n        border: 1px solid #e2e8f0;\n    }\n    \/* 移动端适配 *\/\n    @media (max-width: 768px) {\n        .lag-screw-pro-description {\n            padding: 0.75rem;\n        }\n        .ls-product-title {\n            font-size: 1.4rem;\n        }\n        .ls-grid-2col {\n            flex-direction: column;\n            gap: 1rem;\n        }\n        .ls-feature-item {\n            flex-direction: row;\n            gap: 0.8rem;\n        }\n        .ls-spec-label, .ls-spec-value {\n            padding: 0.7rem 0.9rem;\n            font-size: 0.85rem;\n        }\n        .ls-features h2, .ls-specs h2, .ls-faq h2 {\n            font-size: 1.4rem;\n        }\n        .ls-faq-question {\n            font-size: 0.98rem;\n        }\n    }\n    \/* 小屏 *\/\n    @media (max-width: 480px) {\n        .ls-spec-label, .ls-spec-value {\n            display: table-cell;\n            word-break: break-word;\n        }\n        .ls-feat-icon {\n            font-size: 1.5rem;\n            min-width: 38px;\n        }\n    }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52230522896658,"sku":"GBTST0041","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/71gSpVcDWiL_a6bd8658-0bb1-4388-ac98-052cc3de620a.jpg?v=1777452072","url":"https:\/\/homediyer.com\/products\/lag-screws-4-inch-25pcs-heavy-duty-construction-screw-structural-wood-screw-14-x-4-rust-resistant-washer-head-black-coated-exterior-wood-lag-screws-hex-socket","provider":"HomeDIYer","version":"1.0","type":"link"}