{"product_id":"hillman-5-8-in-d-x-4-1-2-in-l-heat-treated-zinc-steel-hex-head-cap-screw-25-pk","title":"HILLMAN 5\/8 in. D X 4-1\/2 in. L Heat Treated Zinc Steel Hex Head Cap Screw 25 pk","description":"\u003cdiv\u003e\n\u003cp\u003eWhen your project demands long-lasting, high-strength fasteners, the Hillman 5\/8 in. D x 4-1\/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw is ready to perform. This 25-pack boxed set brings confidence to a range of applications—from heavy-duty shelving and deck framing to equipment mounting and metal-to-wood assemblies—delivering dependable performance where it matters most.\u003c\/p\u003e \u003ch2\u003eWhy this hex head cap screw stands out\u003c\/h2\u003e\n\u003cp\u003eDesigned for strength and durability, this Hillman fastener combines a 5\/8 inch diameter with a generous 4-1\/2 inch length, giving you a sturdy, deep bite in a variety of materials. The heat-treated zinc finish provides excellent corrosion resistance, helping your assemblies withstand humidity, indoor\/outdoor use, and everyday wear without compromising appearance. Built from solid steel and rated as Grade 5, these screws strike a practical balance between strength and workability for most common structural and fixture projects.\u003c\/p\u003e \u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-strength performance:\u003c\/strong\u003e Grade 5 steel delivers reliable shear and tensile strength for demanding fastenings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCorrosion resistance:\u003c\/strong\u003e Heat-treated zinc coating guards against rust and staining, expanding the life of outdoor or high-humidity installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy driving with a hex head:\u003c\/strong\u003e The hex head accepts standard wrenches or drivers for precise torque control and quick installation, even in tight spaces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLong reach for versatile mounting:\u003c\/strong\u003e At 4-1\/2 inches, this screw is ideal for deeper holes, thick materials, or assemblies where a longer fastener is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConvenient 25-pack boxed packaging:\u003c\/strong\u003e Keeps your workshop stocked and reduces downtime on larger projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePerfect use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDeck framing, railing connections, and other outdoor wood-to-wood or wood-to-metal assemblies where a robust fastener is required.\u003c\/li\u003e \u003cli\u003eShelving systems, cabinetry supports, and heavy-duty mounts where a strong, long screw helps secure fixtures.\u003c\/li\u003e \u003cli\u003eMachinery brackets, agricultural equipment, and shop fixtures that benefit from a durable, high-strength connection.\u003c\/li\u003e \u003cli\u003eAny project needing a reliable, easy-to-drive screw with good bite into softer metals or seasoned wood.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUse with a matching hex driver or socket wrench to achieve consistent torque and prevent cam-out.\u003c\/li\u003e \u003cli\u003eFor wood applications, pre-drill a pilot hole to minimize splitting and ensure accurate positioning.\u003c\/li\u003e \u003cli\u003eApply a light lubricant or anti-seize compound if driving into hard materials to reduce friction and ease installation.\u003c\/li\u003e \u003cli\u003ePair with a washer when a load-distributing surface is needed or when mounting hardware requires even pressure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongdiameter:\u003e 5\/8 in\u003c\/strongdiameter:\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 4-1\/2 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Heat-treated zinc\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHead type:\u003c\/strong\u003e Hex\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread type:\u003c\/strong\u003e Coarse\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e 5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackage contents:\u003c\/strong\u003e 25 pieces\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Boxed\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re outfitting a new workbench, repairing outdoor structures, or assembling equipment mounts, this Hillman hex head cap screw delivers consistent performance and dependable strength. It’s a practical, purpose-built fastener for professionals and DIY enthusiasts who want a trusted, long-lasting solution that’s ready to tackle the job right out of the box.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hillman","offers":[{"title":"Default Title","offer_id":52171864506642,"sku":"57486","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/57486_LA.eps_High.jpg?v=1775503292","url":"https:\/\/nationalhardwaregroup.com\/products\/hillman-5-8-in-d-x-4-1-2-in-l-heat-treated-zinc-steel-hex-head-cap-screw-25-pk","provider":"National Hardware Group","version":"1.0","type":"link"}