{"product_id":"3-8-thick-4-5-od-round-aluminum-countersunk-pad-center-vent-hole-marine-grade-6061-t6","title":"3\/8\" Thick 4.5\" OD Round Aluminum Countersunk Pad | Center Vent Hole | Marine Grade 6061-T6","description":"\u003cp\u003e\u003cstrong\u003e4.5\" OD Round Aluminum Countersunk Pad\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCNC-machined round countersunk pad with center vent hole, designed for flush-mount fastening on fiberglass deck surfaces in marine environments. Three countersunk outer holes allow screw heads to sit flush, while the center hole provides a weld vent for through-deck installations.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Marine Grade 6061-T6 Aluminum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 4.5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 0.375\" (3\/8\").\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Holes:\u003c\/strong\u003e 3 countersunk holes (5\/16\" diameter for 1\/4\" fasteners).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Hole:\u003c\/strong\u003e 1 vent hole (for welding\/pass-through).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.53 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Matte. Lightly tumbled for deburring. Paint\/powder coat ready.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e T-tops, tuna towers, hard tops, radar arches, leaning posts, grab bars, bow rails, outrigger mounts, rod holders.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMarine-grade 6061-T6 aluminum\u003c\/strong\u003e — suitable for saltwater environments per ABYC standards.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eTrust Welding World, Inc. for your marine hardware — precision-cut aluminum components for professional marine fabrication.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e: \u003cstrong\u003e1–2 work days.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Welding World, Inc.","offers":[{"title":"Default Title","offer_id":42976215334973,"sku":"Part Number: 0018","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0494\/7717\/files\/0018.png?v=1779211584","url":"https:\/\/weldingworldinc.com\/products\/3-8-thick-4-5-od-round-aluminum-countersunk-pad-center-vent-hole-marine-grade-6061-t6","provider":"Welding World, Inc.","version":"1.0","type":"link"}