{"product_id":"304-stainless-steel-bsp-blanking-end-cap-pipe-fittings","title":"304 Stainless Steel BSP Blanking End Cap Pipe Fittings — Male \u0026 Female 1\/4\" to 1-1\/2\"","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBSP Blanking End Cap Pipe Fittings — Seal Unused Ports with 304 Stainless Steel\u003c\/h2\u003e\n\u003cp\u003eUnused pipe ports are a common source of leaks, contamination, and pressure loss in plumbing, hydraulic, and pneumatic systems. Whether you're capping off a spare outlet on a manifold, closing a test port after commissioning, or blanking an unused branch on a water distribution line, you need a fitting that threads in cleanly and holds without corroding. These 304 stainless steel BSP blanking end caps are built for exactly that job — available in both male and female configurations so you can match whatever port type you're working with.\u003c\/p\u003e\n\u003cp\u003eEach cap is machined from solid 304 stainless steel with a hex-head body for easy wrench installation. Available in male (external thread) and female (internal thread) versions, covering BSP sizes from 1\/4\" (≈6mm) to 1-1\/2\" (≈38mm). Sold individually or in packs of 2 or 5 — select your size, thread type, and pack quantity from the variant options above.\u003c\/p\u003e\n\u003cp\u003eTypical applications include capping spare ports on hydraulic manifolds and valve blocks, sealing unused outlets on water heaters and boilers, blanking test points on compressed air lines, and closing off branch connections during phased plumbing installations. These fittings are a go-to for plumbers, maintenance engineers, and serious DIYers who need a reliable BSP pipe end cap that won't rust out over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e \u003cstrong\u003eThread Standard:\u003c\/strong\u003e BSPP (British Standard Parallel Pipe) — fits standard BSP-threaded ports. \u003cstrong\u003eNot compatible with NPT threads.\u003c\/strong\u003e Use PTFE tape or thread sealant for a leak-free connection.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These BSP Stainless Steel Blanking End Caps\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMale \u0026amp; Female Options\u003c\/strong\u003e — Available in both external (male) and internal (female) BSP thread configurations, so you can seal any unused port regardless of thread type.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e — Resists rust, oxidation, and mild chemical exposure — a significant step up from brass or zinc-plated carbon steel blanking plugs in wet or outdoor environments.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Size Range\u003c\/strong\u003e — Covers BSP sizes from 1\/4\" to 1-1\/2\" (male) and 1\/4\" to 1-1\/4\" (female), making this listing a practical one-stop source for stainless steel BSP pipe end caps across multiple port sizes.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eHex-Head Body for Wrench Tightening\u003c\/strong\u003e — The hexagonal outer profile allows a standard open-end or adjustable wrench to apply proper torque, reducing the risk of cross-threading or under-tightening compared to slotted or knurled caps.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Pack Sizes\u003c\/strong\u003e — Order 1, 2, or 5 pieces per size to match your project scope — whether you need a single replacement cap or a small stock for a multi-port manifold job.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBroad Application Compatibility\u003c\/strong\u003e — Suitable for water, air, oil, and many mild fluid systems; commonly used in plumbing, hydraulics, pneumatics, and industrial maintenance where a stainless steel blanking plug BSP fitting is required.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — BSP Blanking End Cap Pipe Fittings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel (18-8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSPP (British Standard Parallel Pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Type Options\u003c\/th\u003e\n\u003ctd\u003eMale (external thread) \/ Female (internal thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes (Male)\u003c\/th\u003e\n\u003ctd\u003e1\/4\", 3\/8\", 1\/2\", 3\/4\", 1\", 1-1\/4\", 1-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes (Female)\u003c\/th\u003e\n\u003ctd\u003e1\/4\", 3\/8\", 1\/2\", 3\/4\", 1\", 1-1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range (approx.)\u003c\/th\u003e\n\u003ctd\u003e1\/4\" (≈6mm) to 1-1\/2\" (≈38mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eHex head (wrench-applicable)\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\u003ePack Size Options\u003c\/th\u003e\n\u003ctd\u003e1 pc \/ 2 pcs \/ 5 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Working Pressure\u003c\/th\u003e\n\u003ctd\u003eGenerally up to ~150 PSI (≈10 bar) in water\/air service — see variant and confirm for your application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Media\u003c\/th\u003e\n\u003ctd\u003eWater, air, oil, mild hydraulic fluids (confirm for aggressive chemicals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSealant Required\u003c\/th\u003e\n\u003ctd\u003eYes — PTFE tape or thread compound recommended for liquid\/gas service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eConfirm your thread standard before ordering.\u003c\/strong\u003e BSP (British Standard Pipe) threads are \u003cem\u003enot\u003c\/em\u003e interchangeable with NPT (National Pipe Thread). If your system uses NPT ports, these caps will not seal correctly. When in doubt, measure your thread pitch and diameter or consult a thread identification chart.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size BSP blanking end cap?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the cap size to your pipe's nominal BSP thread size. For example, a 1\/2\" BSP port requires a 1\/2\" BSP end cap. When in doubt, measure the outer diameter of the male thread or the inner diameter of the female port and cross-reference a BSP thread chart. Sizes in this listing range from 1\/4\" (≈6mm) to 1-1\/2\" (≈38mm). If you're unsure, contact us to confirm before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a male and female BSP blanking cap?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA \u003cstrong\u003emale blanking cap\u003c\/strong\u003e has external (outside) threads and screws into a female-threaded port to seal it — think of it like a bolt going into a nut. A \u003cstrong\u003efemale blanking cap\u003c\/strong\u003e has internal (inside) threads and fits over a male-threaded stub or nipple. Choose based on the thread type of the port you need to seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these end caps suitable for outdoor or corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. 304 stainless steel offers good resistance to atmospheric corrosion, moisture, and many mild chemicals, making these caps generally suitable for outdoor plumbing, marine-adjacent installations, and food-processing environments. For highly aggressive media (e.g., chloride-rich or strongly acidic fluids), 316 stainless steel is typically recommended instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating do these BSP blanking caps carry?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e304 stainless steel BSP end caps of this type are generally rated for working pressures up to approximately 150 PSI (≈10 bar) in water and air service at ambient temperatures. Actual ratings depend on size, wall thickness, and installation conditions. Always verify against your system's pressure requirements before use, and contact us if you need confirmation for a specific size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant (PTFE tape) with these caps?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Applying PTFE thread seal tape (plumber's tape) or a suitable pipe thread compound is recommended for liquid or gas applications to ensure a leak-free seal. BSPP threads are parallel — unlike tapered NPT threads, they do not self-seal on the thread form alone, so sealant is required to achieve a pressure-tight connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these fittings compatible with NPT (National Pipe Thread) ports?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. BSP and NPT threads have different thread angles (55° vs. 60°) and pitch specifications and are not directly interchangeable. These caps are designed for BSP-threaded ports only. Attempting to use them on NPT ports may result in cross-threading, poor engagement, or leaks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these end caps for gas lines?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese caps are made from 304 stainless steel and are generally compatible with many gas applications in low-to-medium pressure systems. However, gas installations are subject to local codes and regulations. Always consult a licensed professional and verify compliance with applicable standards (e.g., local plumbing or gas codes) before using any fitting in a gas system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003esize, thread type, and pack quantity\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"1\u00264\" Male \/ 1","offer_id":52336598352146,"sku":"WJT0843-0","price":3.85,"currency_code":"USD","in_stock":true},{"title":"1\u00264\" Male \/ 2","offer_id":52336598384914,"sku":"WJT0843-1","price":5.02,"currency_code":"USD","in_stock":true},{"title":"1\u00264\" Male \/ 5","offer_id":52336598417682,"sku":"WJT0843-2","price":9.94,"currency_code":"USD","in_stock":true},{"title":"3\u00268\" Male \/ 1","offer_id":52336598450450,"sku":"WJT0843-3","price":4.01,"currency_code":"USD","in_stock":true},{"title":"3\u00268\" Male \/ 2","offer_id":52336598483218,"sku":"WJT0843-4","price":5.33,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" Male \/ 1","offer_id":52336598515986,"sku":"WJT0843-6","price":4.22,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" Male \/ 2","offer_id":52336598548754,"sku":"WJT0843-7","price":6.91,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" Male \/ 1","offer_id":52336598581522,"sku":"WJT0843-9","price":5.7,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" Male \/ 2","offer_id":52336598614290,"sku":"WJT0843-10","price":10.28,"currency_code":"USD","in_stock":true},{"title":"1\" Male \/ 1","offer_id":52336598647058,"sku":"WJT0843-12","price":6.49,"currency_code":"USD","in_stock":true},{"title":"1-1\u00264\" Male \/ 1","offer_id":52336598679826,"sku":"WJT0843-15","price":8.65,"currency_code":"USD","in_stock":true},{"title":"1-1\u00262\" Male \/ 1","offer_id":52336598712594,"sku":"WJT0843-17","price":10.8,"currency_code":"USD","in_stock":true},{"title":"1\u00264\" Female \/ 1","offer_id":52336598745362,"sku":"WJT0843-21","price":3.9,"currency_code":"USD","in_stock":true},{"title":"1\u00264\" Female \/ 2","offer_id":52336598778130,"sku":"WJT0843-22","price":5.13,"currency_code":"USD","in_stock":true},{"title":"1\u00264\" Female \/ 5","offer_id":52336598810898,"sku":"WJT0843-23","price":10.76,"currency_code":"USD","in_stock":true},{"title":"3\u00268\" Female \/ 1","offer_id":52336598843666,"sku":"WJT0843-24","price":4.27,"currency_code":"USD","in_stock":true},{"title":"3\u00268\" Female \/ 2","offer_id":52336598876434,"sku":"WJT0843-25","price":6.58,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" Female \/ 1","offer_id":52336598909202,"sku":"WJT0843-27","price":4.88,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" Female \/ 2","offer_id":52336598941970,"sku":"WJT0843-28","price":8.64,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" Female \/ 1","offer_id":52336598974738,"sku":"WJT0843-30","price":5.94,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" Female \/ 2","offer_id":52336599007506,"sku":"WJT0843-31","price":10.77,"currency_code":"USD","in_stock":true},{"title":"1\" Female \/ 1","offer_id":52336599040274,"sku":"WJT0843-33","price":8.42,"currency_code":"USD","in_stock":true},{"title":"1-1\u00264\" Female \/ 1","offer_id":52336599073042,"sku":"WJT0843-35","price":9.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of16_c541b4fb-3f02-4c24-b41d-2521ace54800.jpg?v=1781070644","url":"https:\/\/homediyer.com\/products\/304-stainless-steel-bsp-blanking-end-cap-pipe-fittings","provider":"HomeDIYer","version":"1.0","type":"link"}