{"product_id":"304-stainless-steel-bsp-male-hex-plug-end-stopper-pipe-fitting","title":"304 Stainless Steel BSP Male Thread Hex Plug — End Stopper Pipe Fitting (1\/4\" to 2\")","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right BSP hex plug size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the plug size to your pipe's nominal bore. BSP sizes are based on the internal diameter of the pipe, not the thread OD. For example, a BSP 1\/2\\\" plug (DN15) fits a pipe with roughly 15mm internal bore. When in doubt, measure the thread OD and compare to a BSP thread chart, or check the DN (nominal diameter) stamped on your existing fitting.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong are these hex plugs — what pressure can they handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"304 stainless steel hex plugs are generally rated for working pressures up to 150 PSI (approximately 10 bar) in standard plumbing applications, though actual ratings depend on pipe schedule, thread engagement, and the use of appropriate thread sealant. For high-pressure hydraulic or pneumatic systems, confirm the rated pressure with your system specifications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these plugs be used outdoors or in wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. 304 stainless steel offers good corrosion resistance in most outdoor and wet environments. It performs well against rain, humidity, and mild chemical exposure. For marine or highly chlorinated environments, 316 stainless steel is typically recommended for superior salt resistance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these BSP or NPT thread? Will they fit my American pipe fittings?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These plugs use BSP (British Standard Pipe) threads, which are common in the UK, Australia, Asia, and many industrial systems worldwide. BSP threads are NOT directly compatible with NPT (National Pipe Thread) fittings used in most US residential plumbing — the thread angle and pitch differ. Always confirm your existing fittings use BSP before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need thread sealant (PTFE tape) with these plugs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, thread sealant is generally recommended for a leak-free seal. PTFE (Teflon) tape or a liquid pipe thread compound applied to the male threads before installation helps fill micro-gaps and prevents weeping, especially in water or gas lines. Apply 2–3 wraps of PTFE tape in the direction of the thread.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What wrench size do I need to install these hex plugs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The hex head size varies by plug size. Smaller sizes (1\/4\\\" to 1\/2\\\" BSP) typically require a 14–22mm wrench, while larger sizes (1\\\" to 2\\\" BSP) generally need a 30–50mm wrench. Check the hex flat-to-flat dimension for your specific size variant, or use an adjustable wrench for convenience.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I reuse these plugs after removal?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"In most cases, yes — stainless steel hex plugs can be removed and reinstalled. Clean the threads, remove old sealant, and apply fresh PTFE tape before reinstalling. Inspect threads for any damage or galling before reuse. Avoid over-tightening, which can deform threads and make future removal difficult.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003c!-- ① OVERVIEW --\u003e\n  \u003ch2\u003eBSP Male Thread Hex Plug — Seal Pipe Ends Reliably with 304 Stainless Steel\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003cp\u003eWhether you're capping off an unused port on a hydraulic manifold, blanking a test point on a compressed air line, or sealing a spare outlet on a water distribution system, a loose or corroding end plug is a liability you can't afford. These \u003cstrong\u003e304 stainless steel BSP male thread hex plugs\u003c\/strong\u003e give plumbers, pipefitters, and DIY builders a dependable, wrench-driven solution that holds tight and resists corrosion over the long haul.\u003c\/p\u003e\n    \u003cp\u003eEach plug is machined from \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e with a fully formed male BSP (British Standard Pipe) thread and a hex head for positive wrench engagement. Available in eight sizes from \u003cstrong\u003eBSP 1\/4\" (DN8)\u003c\/strong\u003e to \u003cstrong\u003eBSP 2\" (DN50)\u003c\/strong\u003e, covering the most common nominal pipe diameters used in plumbing, industrial, and hydraulic pipework. Sold individually (1 pc per order) so you can order exactly the quantity you need.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include capping spare outlets on water manifolds, blanking unused ports on pneumatic and hydraulic circuits, sealing test points during pressure testing, and closing off pipe ends during system modifications — anywhere a \u003cstrong\u003eBSP pipe end stopper\u003c\/strong\u003e or \u003cstrong\u003estainless steel pipe plug\u003c\/strong\u003e is required in a professional or workshop setting.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ② COMPATIBILITY BAR --\u003e\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n    \u003cstrong\u003eThread Compatibility:\u003c\/strong\u003e BSP (British Standard Pipe) male thread — fits BSP female threaded sockets, tees, crosses, and manifolds. \u003cstrong\u003eNot compatible with NPT (National Pipe Thread)\u003c\/strong\u003e fittings. Confirm your system uses BSP before ordering.\n  \u003c\/div\u003e\n\n  \u003c!-- ③ KEY FEATURES --\u003e\n  \u003ch2\u003e✅ Key Features of These BSP Male Hex Plug Pipe Fittings\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eHex Head Design\u003c\/strong\u003e — Six-sided head provides solid wrench grip for controlled torque during installation and removal, reducing the risk of rounding or slipping on stainless steel fittings.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e — Resists rust, oxidation, and mild chemical exposure, making these plugs suitable for water lines, compressed air systems, and light industrial fluid circuits.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eFull BSP Thread Engagement\u003c\/strong\u003e — Precisely cut male BSP threads ensure consistent fit across standard BSP female fittings from DN8 to DN50, minimizing cross-threading risk during assembly.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eEight Size Options in One Listing\u003c\/strong\u003e — From BSP 1\/4\" (DN8) to BSP 2\" (DN50), covering the most common pipe sizes used in residential plumbing, HVAC, and light industrial pipework — no need to source from multiple suppliers.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eCompatible with PTFE Sealant\u003c\/strong\u003e — Smooth thread form accepts PTFE tape and liquid thread compounds cleanly, helping achieve a leak-free seal on water, air, and low-pressure fluid lines.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eRemovable and Reusable\u003c\/strong\u003e — Stainless steel threads resist galling better than carbon steel alternatives, allowing these plugs to be removed, cleaned, and reinstalled during system modifications or maintenance.\u003c\/span\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n  \u003ch2\u003e📐 Technical Specifications — BSP Male Hex Plug Pipe Fitting\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eMale Thread Hex Plug \/ End Stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe) — Male\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003eBSP 1\/4\" (DN8), 3\/8\" (DN10), 1\/2\" (DN15), 3\/4\" (DN20), 1\" (DN25), 1-1\/4\" (DN32), 1-1\/2\" (DN40), 2\" (DN50)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eHex (Six-Sided)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eDrive Method\u003c\/th\u003e\n\u003ctd\u003eWrench \/ Spanner (open-end or adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural stainless (brushed\/machined)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHex Wrench Size\u003c\/th\u003e\n\u003ctd\u003eSee variant options (varies by pipe size)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWorking Pressure\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm (typically up to 150 PSI \/ 10 bar for standard plumbing)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCompatible Sealant\u003c\/th\u003e\n\u003ctd\u003ePTFE tape, liquid thread compound\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Compatibility\u003c\/th\u003e\n\u003ctd\u003eBSP female fittings only — not compatible with NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eSize Note:\u003c\/strong\u003e BSP sizes refer to nominal pipe bore, not thread outer diameter. Always verify your fitting's thread standard (BSP vs NPT) and nominal size before ordering. When in doubt, measure the thread OD and consult a BSP thread chart.\n  \u003c\/div\u003e\n\n  \u003c!-- ⑤ FAQ --\u003e\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right BSP hex plug size?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMatch the plug size to your pipe's nominal bore (DN number). BSP sizes are based on the internal diameter of the pipe, not the thread OD. For example, a BSP 1\/2\" plug (DN15) fits a pipe with roughly 15mm internal bore. When in doubt, measure the thread OD of your existing female fitting and compare to a BSP thread chart. The DN number is often stamped on existing fittings.\u003c\/p\u003e\n        \u003cp\u003eQuick reference: 1\/4\" ≈ 6mm bore (DN8) | 1\/2\" ≈ 15mm bore (DN15) | 1\" ≈ 25mm bore (DN25) | 2\" ≈ 50mm bore (DN50).\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow much pressure can these stainless steel hex plugs handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003e304 stainless steel BSP hex plugs are generally suitable for working pressures up to approximately 150 PSI (10 bar) in standard plumbing and low-pressure fluid applications. Actual pressure ratings depend on pipe schedule, thread engagement depth, and the use of appropriate thread sealant. For high-pressure hydraulic or pneumatic circuits, please contact us to confirm suitability for your specific system.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these plugs outdoors or in wet\/humid environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. 304 stainless steel offers good corrosion resistance against rain, humidity, and mild chemical exposure, making these plugs suitable for outdoor plumbing, irrigation systems, and workshop air lines. For marine environments or applications with prolonged exposure to salt water or chlorinated water, 316 stainless steel is typically recommended for superior corrosion resistance.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these BSP or NPT thread? Will they fit standard US pipe fittings?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese plugs use \u003cstrong\u003eBSP (British Standard Pipe)\u003c\/strong\u003e threads, which are widely used in the UK, Australia, Asia, and many industrial systems globally. BSP threads are \u003cstrong\u003enot directly interchangeable\u003c\/strong\u003e with NPT (National Pipe Thread) fittings common in US residential plumbing — they differ in thread angle (55° BSP vs 60° NPT) and pitch. Always confirm your existing fittings are BSP-threaded before ordering. If you're unsure, check the fitting markings or measure the thread pitch.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo I need PTFE tape or thread sealant with these plugs?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes, thread sealant is generally recommended for a reliable, leak-free seal. Apply 2–3 wraps of PTFE (Teflon) tape in the direction of the thread before installation, or use a liquid pipe thread compound. This is especially important on water, gas, or compressed air lines where even minor seepage is unacceptable. PTFE tape also makes future removal easier by preventing thread galling.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat wrench size do I need to install these hex plugs?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe hex flat-to-flat dimension varies by plug size. As a general guide, smaller sizes (BSP 1\/4\" to 1\/2\") typically require a 14–22mm open-end or adjustable wrench, while larger sizes (BSP 1\" to 2\") generally need a 30–50mm wrench. An adjustable wrench or pipe wrench works across all sizes. Avoid using pliers directly on the hex faces to prevent marring the stainless finish.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these plugs be removed and reused after installation?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eIn most cases, yes. Stainless steel threads resist galling better than carbon steel, so these plugs can typically be removed, cleaned, and reinstalled during system modifications or maintenance. Before reinstalling, remove old PTFE tape or sealant residue from the threads, inspect for any damage, and apply fresh sealant. Avoid over-tightening on initial installation to make future removal easier.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- ⑥ CTA BAR --\u003e\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your \u003cstrong\u003esize (BSP)\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"BSP 1\u00264\" (DN8) \/ 1 pcs","offer_id":52336635674898,"sku":"PENG026569x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"BSP 3\u00268\" (DN10) \/ 1 pcs","offer_id":52336635707666,"sku":"PENG026570x1","price":2.43,"currency_code":"USD","in_stock":true},{"title":"BSP 1\u00262\" (DN15) \/ 1 pcs","offer_id":52336635740434,"sku":"PENG026571x1","price":2.71,"currency_code":"USD","in_stock":true},{"title":"BSP 3\u00264\" (DN20) \/ 1 pcs","offer_id":52336635773202,"sku":"PENG026572x1","price":3.39,"currency_code":"USD","in_stock":true},{"title":"BSP 1\" (DN25) \/ 1 pcs","offer_id":52336635805970,"sku":"PENG026573x1","price":4.88,"currency_code":"USD","in_stock":true},{"title":"BSP 1 1\u00264\" (DN32) \/ 1 pcs","offer_id":52336635838738,"sku":"PENG026574x1","price":7.74,"currency_code":"USD","in_stock":true},{"title":"BSP 1 1\u00262\" (DN40) \/ 1 pcs","offer_id":52336635871506,"sku":"PENG026575x1","price":8.15,"currency_code":"USD","in_stock":true},{"title":"BSP 2\" (DN50) \/ 1 pcs","offer_id":52336635904274,"sku":"PENG026576x1","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of18_84717cd9-1486-4b20-a0e0-d31e53d77095.jpg?v=1781075338","url":"https:\/\/homediyer.com\/products\/304-stainless-steel-bsp-male-hex-plug-end-stopper-pipe-fitting","provider":"HomeDIYer","version":"1.0","type":"link"}