{"product_id":"through-hull-skin-fitting-lock-nut-kit-bsp-parametric-3d-print","title":"Through-Hull Skin Fitting + Lock Nut Kit (BSP) — Parametric (3D Print)","description":"Parametric BSP through-hull KIT by MarineLab3D — generates TWO parts: the through-hull skin fitting (flange + externally threaded hollow tube) AND the matching flanged hex lock nut.\u003cbr\u003eYou download a ZIP with two separate STL files (through-hull.stl + lock-nut.stl).\u003cbr\u003e\u003cbr\u003e🔧 Male BSP thread: 1\/4\" to 2 1\/2\"\u003cbr\u003e📏 Tube length 2–25 cm · Inner Ø up to (outer − 6 mm) · Flange Ø from (outer + 10 mm)\u003cbr\u003e⬇ Tapered flange (flat on the hull side) · 2 opposite key-slots to hold it while tightening · matching lock nut with same flange\u003cbr\u003e\u003cbr\u003e🖨️ Print recommendations: PETG or ASA, 0.15–0.2 mm layers, 4 perimeters. For fittings kept submerged for long periods, print in \u003cstrong\u003ePPS\u003c\/strong\u003e (alternatively \u003cstrong\u003ePA612-CF\u003c\/strong\u003e). Seal threads with O-ring \/ PTFE.\u003cbr\u003e\u003cbr\u003eUse “Customize dimensions” to set the sizes, preview in 3D, then receive your ZIP (2 STL) after purchase.","brand":"MarineLab3D","offers":[{"title":"Default Title","offer_id":52540801253688,"sku":null,"price":8.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/2889\/0936\/files\/through-hull-kit-hero.png?v=1782055079","url":"https:\/\/marinelab3d.com\/products\/through-hull-skin-fitting-lock-nut-kit-bsp-parametric-3d-print","provider":"MarineLab3D","version":"1.0","type":"link"}