{"product_id":"heavy-duty-quarter-inch-double-expansion-anchors-w","title":"Heavy Duty Quarter Inch Double Expansion Anchors With Internal Thread 14 Twenty Fasteners Corrosion Resistant Zinc Coated Body Expands Full Length For Rock Solid Grip In Crumbling Brick Masonry Top Shelf Quality 100 Count Bulk Pack","description":"\u003cdiv\u003e\n\u003cp\u003eBulk Pack Heavy Duty Zinc Coated Masonry Anchors\u003cbr\u003e✔️ Quarter inch zinc anchor bolts grip crumbling brick walls\u003c\/p\u003e \u003cp\u003eA pack of 100 quarter inch double expansion anchors built for attaching heavy hardware to solid and aging masonry. These internal threaded steel fasteners perform reliably in concrete, block, and brick joints where moisture demands corrosion resistance. They slide over common coarse thread bolts and lock tight against shifting substrates without extra sleeves or complicated setups.\u003c\/p\u003e ✅ Zinc alloy exterior resists surface rust during damp weather\u003cbr\u003e\n✅ Entire sleeve stretches outward to fill cracked or soft cavities completely\u003cbr\u003e\n✅ Requires a 1 2 inch carbide tipped bit operated through a hammer drill\u003cbr\u003e\n✅ Push past 1 3 8 inch minimum embedment before tightening the head bolt\u003cbr\u003e\n✅ Keep 5 inch spacing between units and leave 2 1 2 inch clearance near edges\u003cbr\u003e \u003cp\u003e💡 What is the best masonry fastener for heavy outdoor railings?\u003cbr\u003eDouble expansion anchors deliver steady hold by pushing outward against the sides of a drilled hole. They spread tension evenly across porous materials while keeping installation quick and tool friendly. You get dependable load transfer that handles seasonal temperature swings and backyard humidity. Simply tap them straight in, run a standard bolt through the core, and watch the force distribute across the full shaft length. Each unit expands uniformly regardless of minor holes variations, so you skip the guesswork and save time on every project. Local pros keep these handy because they solve weak substrate problems without switching hardware kits.\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49309201596651,"sku":"VXB071WX4T11","price":162.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/81a0VtXmiiL.jpg?v=1787925567","url":"https:\/\/vxb.com\/products\/heavy-duty-quarter-inch-double-expansion-anchors-w","provider":"VXB Bearings","version":"1.0","type":"link"}