{"product_id":"25-piece-jack-nut-kit-for-hollow-walls-thin-metal","title":"25-Piece Jack Nut Kit for Hollow Walls \u0026 Thin Metal","description":"\u003csection id=\"jack-nut-kit\" data-product-class=\"GENERAL_GOODS\" style=\"box-sizing:border-box;max-width:760px;margin:0 auto;color:#172033;font-family:Arial,Helvetica,sans-serif;line-height:1.55;overflow-wrap:anywhere;\"\u003e\n  \u003cstyle\u003e\n    #jack-nut-kit *{box-sizing:border-box}#jack-nut-kit h2,#jack-nut-kit h3,#jack-nut-kit p{margin-top:0}#jack-nut-kit h2{font-size:30px;line-height:1.15;color:#102a4c;margin-bottom:12px}#jack-nut-kit h3{font-size:20px;line-height:1.25;color:#102a4c;margin-bottom:8px}#jack-nut-kit .block{padding:34px 18px}#jack-nut-kit .center{text-align:center}#jack-nut-kit .eyebrow{font-size:13px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;color:#d75a26;margin-bottom:8px}#jack-nut-kit .lead{font-size:18px;color:#46556c;max-width:640px;margin:0 auto 18px}#jack-nut-kit .visual{display:block;width:600px;max-width:100%;height:auto;margin:18px auto;border-radius:18px}#jack-nut-kit .motion{display:block;width:360px;max-width:100%;height:auto;margin:18px auto;border-radius:18px}#jack-nut-kit .benefits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:20px}#jack-nut-kit .benefit{padding:18px;border-radius:16px;background:#f2f6fb;border:1px solid #dbe4ef}#jack-nut-kit .benefit p{margin:0;color:#46556c}#jack-nut-kit .steps{counter-reset:step;display:grid;gap:14px;margin:20px 0}#jack-nut-kit .step{position:relative;padding:16px 16px 16px 58px;border-left:4px solid #d75a26;background:#fff7f2;border-radius:12px}#jack-nut-kit .step:before{counter-increment:step;content:counter(step);position:absolute;left:15px;top:15px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#d75a26;color:#fff;font-weight:800}#jack-nut-kit .details{padding:20px;border-radius:16px;background:#102a4c;color:#fff}#jack-nut-kit .detail-row{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.18)}#jack-nut-kit .detail-row:last-child{border-bottom:0}#jack-nut-kit .detail-row strong{display:block;color:#ffcfad;margin-bottom:3px}#jack-nut-kit .reviews{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}#jack-nut-kit .review-card{padding:16px;background:#fff;border:1px solid #dce4ec;border-radius:16px;box-shadow:0 8px 22px rgba(16,42,76,.08)}#jack-nut-kit .review-card img{display:block;width:480px;max-width:100%;height:auto;margin:12px auto;border-radius:12px}#jack-nut-kit .review-card p{color:#3e4d63;margin:10px 0}#jack-nut-kit .review-card small{font-weight:700;color:#102a4c}#jack-nut-kit details{border-top:1px solid #dce4ec;padding:15px 0}#jack-nut-kit summary{font-weight:800;color:#102a4c;cursor:pointer}#jack-nut-kit details p{margin:8px 0 0;color:#46556c}#jack-nut-kit .guarantee{background:#edf6f2;border-radius:18px;padding:24px}#jack-nut-kit .cta{background:linear-gradient(135deg,#102a4c,#1f5d8c);color:#fff;border-radius:22px;padding:34px 20px;text-align:center}#jack-nut-kit .cta h2,#jack-nut-kit .cta p{color:#fff}#jack-nut-kit .cta-mark{display:inline-block;padding:12px 22px;border-radius:999px;background:#f6a54a;color:#172033;font-weight:900;letter-spacing:.3px}@media(max-width:560px){#jack-nut-kit h2{font-size:26px}#jack-nut-kit .block{padding:28px 14px}#jack-nut-kit .benefits,#jack-nut-kit .reviews{grid-template-columns:1fr}#jack-nut-kit .lead{font-size:16px}}\n  \u003c\/style\u003e\n\n  \u003cdiv class=\"block center\" data-section=\"intro\"\u003e\n    \u003cp class=\"eyebrow\"\u003e25-Piece Hollow-Wall Anchor Kit\u003c\/p\u003e\n    \u003ch2\u003eCreate a Secure Threaded Mount—Even When You Can’t Reach the Back\u003c\/h2\u003e\n    \u003cp class=\"lead\"\u003eThese collapsible metal jack nuts slip into a pre-drilled hole, then open behind thin or hollow material as you tighten. The result is a practical threaded anchor for brackets, panels, fixtures, and everyday repairs.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block center\" data-section=\"visual-demo\"\u003e\n    \u003cp class=\"eyebrow\"\u003eSee the grip form\u003c\/p\u003e\n    \u003ch2\u003eInsert. Tighten. Let the Legs Lock In.\u003c\/h2\u003e\n    \u003cimg class=\"motion\" src=\"https:\/\/cdn.cloudfastcdn.com\/image\/feb258e27299a9209383a35685245ae171f4ff2c.gif\" alt=\"Jack nut expanding behind a hollow metal wall during installation\"\u003e\n    \u003cp class=\"lead\"\u003eThe four metal legs collapse outward behind the surface, helping spread the hold where an ordinary nut would be impossible to position.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"benefit-overview\"\u003e\n    \u003cp class=\"eyebrow center\"\u003eWhy DIYers keep them nearby\u003c\/p\u003e\n    \u003ch2 class=\"center\"\u003eA Smarter Fix for Thin, Hollow Materials\u003c\/h2\u003e\n    \u003cdiv class=\"benefits\"\u003e\n      \u003cdiv class=\"benefit\"\u003e\n\u003ch3\u003eBackside-Free Setup\u003c\/h3\u003e\n\u003cp\u003eWork from the front of the panel when the reverse side is enclosed or hard to reach.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"benefit\"\u003e\n\u003ch3\u003eFour-Leg Expansion\u003c\/h3\u003e\n\u003cp\u003eThe metal body opens behind the wall as the screw tightens, creating a broad mechanical grip.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"benefit\"\u003e\n\u003ch3\u003eReusable Threaded Point\u003c\/h3\u003e\n\u003cp\u003eOnce properly set, the anchor provides a threaded mounting point for compatible machine screws.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"benefit\"\u003e\n\u003ch3\u003eFour Useful Sizes\u003c\/h3\u003e\n\u003cp\u003eChoose among M4×20, M5×25, M6×25, and M6×30 25-piece sets for the job at hand.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cimg class=\"visual\" src=\"https:\/\/cdn.cloudfastcdn.com\/image\/25bfdd255020754dee4966ac64ba32c2bc39c679.png\" alt=\"Four-size jack nut kit used to mount a shelf bracket on thin metal\"\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"first-detail-visual\"\u003e\n    \u003cp class=\"eyebrow center\"\u003eThe mechanics are simple\u003c\/p\u003e\n    \u003ch2 class=\"center\"\u003eThe Hold Forms Behind the Surface\u003c\/h2\u003e\n    \u003cimg class=\"visual\" src=\"https:\/\/cdn.cloudfastcdn.com\/image\/0c82c4ca59fe7c644b89f0ecdabec1226695ecb8.jpeg\" alt=\"Cutaway view of a jack nut expanded behind a thin board\"\u003e\n    \u003cdiv class=\"steps\"\u003e\n      \u003cdiv class=\"step\"\u003e\n\u003ch3\u003eDrill the correct hole\u003c\/h3\u003e\n\u003cp\u003eMatch the hole to the selected anchor size and keep the opening clean and round.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"step\"\u003e\n\u003ch3\u003eInsert the anchor\u003c\/h3\u003e\n\u003cp\u003eSeat the flange flat against the front surface with the collapsible body inside the cavity.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"step\"\u003e\n\u003ch3\u003eTighten until set\u003c\/h3\u003e\n\u003cp\u003eAs the screw draws forward, the four legs open behind the material. Stop when the anchor is snug—do not overtighten.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"step\"\u003e\n\u003ch3\u003eAttach your hardware\u003c\/h3\u003e\n\u003cp\u003eUse the compatible threaded point to mount the intended bracket, panel, or light-duty fixture.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"construction\"\u003e\n    \u003cp class=\"eyebrow center\"\u003eMade for the repair drawer\u003c\/p\u003e\n    \u003ch2 class=\"center\"\u003eCompact Metal Anchors, Clear Working Geometry\u003c\/h2\u003e\n    \u003cimg class=\"visual\" src=\"https:\/\/cdn.cloudfastcdn.com\/image\/7fa1d84306d6647c40592a5af358f72a66f6a887.jpeg\" alt=\"Disassembled view of the metal jack nut, screw, and collapsible body\"\u003e\n    \u003cdiv class=\"details\"\u003e\n      \u003cdiv class=\"detail-row\"\u003e\n\u003cstrong\u003eWhere they work\u003c\/strong\u003eThin hollow sections such as sheet metal, hollow square tube, and suitable board materials with clearance behind the surface.\u003c\/div\u003e\n      \u003cdiv class=\"detail-row\"\u003e\n\u003cstrong\u003eWhat each set includes\u003c\/strong\u003e25 matching jack nuts in the selected size.\u003c\/div\u003e\n      \u003cdiv class=\"detail-row\"\u003e\n\u003cstrong\u003eFinish and structure\u003c\/strong\u003eSilver-colored metal body with a round flange, internal thread, and four collapsible legs.\u003c\/div\u003e\n      \u003cdiv class=\"detail-row\"\u003e\n\u003cstrong\u003eGood to know\u003c\/strong\u003eHole diameter, material thickness, and installed load all affect the result. Confirm fit for your specific project before final installation.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block center\" data-section=\"specifications\"\u003e\n    \u003cp class=\"eyebrow\"\u003eChoose the right set\u003c\/p\u003e\n    \u003ch2\u003eFour 25-Piece Options\u003c\/h2\u003e\n    \u003cimg class=\"visual\" src=\"https:\/\/cdn.cloudfastcdn.com\/image\/21ab26c1f4bd37f1221f1cc6598363e0df9a2688.jpeg\" alt=\"Jack nut dimensions for M4, M5, and M6 options\"\u003e\n    \u003cp class=\"lead\"\u003e\u003cstrong\u003eM4×20 mm\u003c\/strong\u003e · \u003cstrong\u003eM5×25 mm\u003c\/strong\u003e · \u003cstrong\u003eM6×25 mm\u003c\/strong\u003e · \u003cstrong\u003eM6×30 mm\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003eEach option is a separate 25-piece set. Select the thread size and body length that match your pre-drilled hole, material thickness, and compatible screw.\u003c\/p\u003e\n    \u003cimg class=\"visual\" src=\"https:\/\/cdn.cloudfastcdn.com\/image\/bcc5356a652cdf9c2f1699e84ccd683daeb04549.jpeg\" alt=\"Twenty-five piece set of silver jack nuts\"\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"reviews\"\u003e\n    \u003cp class=\"eyebrow center\"\u003eFrom the workbench\u003c\/p\u003e\n    \u003ch2 class=\"center\"\u003eSmall Hardware That Solves Awkward Mounting Jobs\u003c\/h2\u003e\n    \u003cdiv class=\"reviews\"\u003e\n      \u003carticle class=\"review-card\"\u003e\n        \u003cspan class=\"review-stars\" aria-label=\"5 out of 5 stars\" style=\"display:inline-flex;gap:2px;color:#f5a623;vertical-align:middle;\"\u003e\n          \u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cp\u003e“I needed to add a bracket to a metal cabinet where there was no way to hold a nut on the inside. These made the job straightforward.”\u003c\/p\u003e\n\u003csmall\u003e— Mike R.\u003c\/small\u003e\n        \u003cimg src=\"https:\/\/cdn.cloudfastcdn.com\/image\/6fa6bbf01bfef08bb64c82861a95e9b449bd791e.jpeg\" alt=\"Installing a bracket on a metal cabinet in a home garage\"\u003e\n      \u003c\/article\u003e\n      \u003carticle class=\"review-card\"\u003e\n        \u003cspan class=\"review-stars\" aria-label=\"5 out of 5 stars\" style=\"display:inline-flex;gap:2px;color:#f5a623;vertical-align:middle;\"\u003e\n          \u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cp\u003e“The sample fit in my sheet-metal test panel exactly the way I expected. I liked being able to check the size before committing to the repair.”\u003c\/p\u003e\n\u003csmall\u003e— Dennis K.\u003c\/small\u003e\n        \u003cimg src=\"https:\/\/cdn.cloudfastcdn.com\/image\/1eb824dcb39c45e683fc142cfe28fa8a29150021.jpeg\" alt=\"Checking jack nut fit on a galvanized test panel\"\u003e\n      \u003c\/article\u003e\n      \u003carticle class=\"review-card\"\u003e\n        \u003cspan class=\"review-stars\" aria-label=\"5 out of 5 stars\" style=\"display:inline-flex;gap:2px;color:#f5a623;vertical-align:middle;\"\u003e\n          \u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cp\u003e“Sorting the sizes before starting saved me a lot of trial and error. The four-leg body is easy to identify once you have it in hand.”\u003c\/p\u003e\n\u003csmall\u003e— Lauren P.\u003c\/small\u003e\n        \u003cimg src=\"https:\/\/cdn.cloudfastcdn.com\/image\/4510e993e67c9c06a2ae03eeb3c2d3918ffbadbd.jpeg\" alt=\"Sorting silver jack nuts by size at a kitchen table\"\u003e\n      \u003c\/article\u003e\n      \u003carticle class=\"review-card\"\u003e\n        \u003cspan class=\"review-stars\" aria-label=\"5 out of 5 stars\" style=\"display:inline-flex;gap:2px;color:#f5a623;vertical-align:middle;\"\u003e\n          \u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg class=\"review-star-icon\" width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\" style=\"display:block;fill:currentColor;\"\u003e\u003cpath d=\"M12 2.5l2.9 5.9 6.5.9-4.7 4.6 1.1 6.5L12 17.3l-5.8 3.1 1.1-6.5-4.7-4.6 6.5-.9L12 2.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cp\u003e“I used one for a small hook on a hollow patio post. The flush front looks neat, and I didn’t have to open the post to reach the back.”\u003c\/p\u003e\n\u003csmall\u003e— Aaron T.\u003c\/small\u003e\n        \u003cimg src=\"https:\/\/cdn.cloudfastcdn.com\/image\/de0a33233c59e65bb091d4e9c663d889f4491f30.jpeg\" alt=\"Checking a small hook mounted to a hollow patio post\"\u003e\n      \u003c\/article\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"faq\"\u003e\n    \u003cp class=\"eyebrow center\"\u003eBefore you choose\u003c\/p\u003e\n\u003ch2 class=\"center\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n    \u003cdetails open\u003e\u003csummary\u003eWhat is this type of fastener called?\u003c\/summary\u003e\u003cp\u003eIt is commonly called a jack nut, collapsible nut, or hollow-wall threaded anchor. Its metal legs expand behind thin or hollow material as the screw is tightened.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eDo I need access to the back of the panel?\u003c\/summary\u003e\u003cp\u003eNo. The anchor is inserted and set from the front, which makes it useful when the reverse side is enclosed.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eWhich materials can I use it with?\u003c\/summary\u003e\u003cp\u003eIt is intended for suitable thin or hollow materials with clearance behind the surface, including many sheet-metal and hollow-section projects. Always test the hole size and material condition first.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eHow do I choose between M4, M5, and M6?\u003c\/summary\u003e\u003cp\u003eMatch the thread size and body length to your compatible screw, pre-drilled hole, material thickness, and project requirements. The available sets are M4×20, M5×25, M6×25, and M6×30.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I keep tightening for a stronger hold?\u003c\/summary\u003e\u003cp\u003eNo. Tighten only until the anchor is fully set and snug. Overtightening can damage the anchor or the surrounding material.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eAre these rated for heavy structural loads?\u003c\/summary\u003e\u003cp\u003eNo structural load rating is provided. Use them for appropriate light-duty mounting and repair tasks, and select a rated fastening system when the application is safety-critical or load-sensitive.\u003c\/p\u003e\u003c\/details\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"after-sales\"\u003e\n    \u003cdiv class=\"guarantee\"\u003e\n\u003ch3\u003eProject-Ready Support\u003c\/h3\u003e\n\u003cp\u003eIf your set arrives damaged, incomplete, or different from the size you selected, contact our support team with your order details. We’ll help review the issue and provide the appropriate next step under the store’s return and replacement policy.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"block\" data-section=\"ending-cta\"\u003e\n    \u003cdiv class=\"cta\"\u003e\n\u003cp class=\"eyebrow\" style=\"color:#ffcfad\"\u003eA small part that unlocks difficult repairs\u003c\/p\u003e\n\u003ch2\u003eBuild a Threaded Mount Where an Ordinary Nut Can’t Go\u003c\/h2\u003e\n\u003cp\u003eChoose the 25-piece size that fits your project and keep a dependable hollow-material solution within reach.\u003c\/p\u003e\n\u003cspan class=\"cta-mark\"\u003eCHOOSE YOUR SIZE\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e","brand":"Beforehatched","offers":[{"title":"25pcs M4 × 20mm \/ Buy 1 Kit(25 Jack Nuts)","offer_id":51123683066103,"sku":"VD3582967-M4","price":39.99,"currency_code":"USD","in_stock":true},{"title":"25pcs M4 × 20mm \/ Buy 2 Kits(50 Jack Nuts) - Free Shipping","offer_id":51123683098871,"sku":"VD3582967-M4*2","price":79.98,"currency_code":"USD","in_stock":true},{"title":"25pcs M4 × 20mm \/ Buy 3 Kits(75 Jack Nuts) - Free Shipping","offer_id":51123683131639,"sku":"VD3582967-M4*3","price":119.97,"currency_code":"USD","in_stock":true},{"title":"25pcs M5 × 25mm \/ Buy 1 Kit(25 Jack Nuts)","offer_id":51123683164407,"sku":"VD3582967-M5","price":39.99,"currency_code":"USD","in_stock":true},{"title":"25pcs M5 × 25mm \/ Buy 2 Kits(50 Jack Nuts) - Free Shipping","offer_id":51123683197175,"sku":"VD3582967-M5*2","price":79.98,"currency_code":"USD","in_stock":true},{"title":"25pcs M5 × 25mm \/ Buy 3 Kits(75 Jack Nuts) - Free Shipping","offer_id":51123683229943,"sku":"VD3582967-M5*3","price":119.97,"currency_code":"USD","in_stock":true},{"title":"25pcs M6 × 25mm \/ Buy 1 Kit(25 Jack Nuts)","offer_id":51123683262711,"sku":"VD3582967-M6252","price":39.99,"currency_code":"USD","in_stock":true},{"title":"25pcs M6 × 25mm \/ Buy 2 Kits(50 Jack Nuts) - Free Shipping","offer_id":51123683295479,"sku":"VD3582967-M6252*2","price":79.98,"currency_code":"USD","in_stock":true},{"title":"25pcs M6 × 25mm \/ Buy 3 Kits(75 Jack Nuts) - Free Shipping","offer_id":51123683328247,"sku":"VD3582967-M6252*3","price":119.97,"currency_code":"USD","in_stock":true},{"title":"25pcs M6 × 30mm \/ Buy 1 Kit(25 Jack Nuts)","offer_id":51123683361015,"sku":"VD3582967-M630","price":43.99,"currency_code":"USD","in_stock":true},{"title":"25pcs M6 × 30mm \/ Buy 2 Kits(50 Jack Nuts) - Free Shipping","offer_id":51123683393783,"sku":"VD3582967-M630*2","price":87.98,"currency_code":"USD","in_stock":true},{"title":"25pcs M6 × 30mm \/ Buy 3 Kits(75 Jack Nuts) - Free Shipping","offer_id":51123683426551,"sku":"VD3582967-M630*3","price":131.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/6598\/0663\/files\/d166ef34cc5453b4bf4cadfb44ec7cf3b3d91a52.webp?v=1788764170","url":"https:\/\/zernto.com\/products\/25-piece-jack-nut-kit-for-hollow-walls-thin-metal","provider":"Zernto","version":"1.0","type":"link"}