{"product_id":"stainless-steel-316-bsp-male-thread-extension-pipe-nipple","title":"Stainless Steel 316 BSP Male Thread Extension Pipe Nipple — 1\/2\", 3\/4\", 1\" | 100–300mm","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e316 Stainless Steel BSP Male Thread Extension Pipe Nipple — Reliable Reach for Every Plumbing Gap\u003c\/h2\u003e\n\u003cp\u003eWhen a standard fitting falls just short of bridging two connection points — whether you're extending a water line behind a wall, spacing out a valve in a tight mechanical room, or adding reach to a marine plumbing run — a poorly matched nipple can mean leaks, rework, and wasted time. These 316 stainless steel BSP male thread extension pipe nipples are built for plumbers, marine engineers, DIY homeowners, and industrial maintenance crews who need a dependable, corrosion-resistant solution that threads in and stays sealed.\u003c\/p\u003e\n\u003cp\u003eEach nipple is machined from solid Grade 316 stainless steel — the molybdenum-bearing alloy chosen for its superior resistance to chloride and salt environments. Available in three BSP nominal pipe sizes (1\/2\", 3\/4\", and 1\") and four lengths — 100mm (≈4\"), 150mm (≈5.9\"), 200mm (≈7.9\"), and 300mm (≈11.8\") — with male BSP threads on both ends. Sold individually or in sets of 2 or 5 pieces to suit single repairs or multi-point installations.\u003c\/p\u003e\n\u003cp\u003eTypical applications include extending water supply lines in residential and commercial plumbing, connecting valves and gauges in industrial pipework, bridging fittings in marine and offshore installations, and adapting BSP-threaded components in HVAC and irrigation systems. The consistent thread form makes these a go-to BSP pipe extension for any job where reach and corrosion resistance both matter.\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 Compatibility:\u003c\/strong\u003e These fittings use \u003cstrong\u003eBSP (British Standard Pipe)\u003c\/strong\u003e male threads — standard in the UK, Australia, and much of Asia and Europe. \u003cstrong\u003eNot directly compatible with NPT threads.\u003c\/strong\u003e Verify your existing fittings are BSP before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These 316 Stainless Steel BSP Extension Pipe Nipples\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eGrade 316 Stainless Steel Construction\u003c\/strong\u003e — Contains molybdenum for enhanced resistance to chloride pitting and crevice corrosion, making it the preferred choice for marine plumbing fittings and coastal installations.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFour Length Options in One Listing\u003c\/strong\u003e — Choose from 100mm (≈4\"), 150mm (≈5.9\"), 200mm (≈7.9\"), or 300mm (≈11.8\") to precisely bridge the gap in your pipework without cutting or improvising.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMale BSP Threads on Both Ends\u003c\/strong\u003e — Machined to BSP (G-thread) standard for a consistent, leak-resistant fit with BSP female sockets, valves, and couplings across plumbing and industrial systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eThree Nominal Pipe Sizes Available\u003c\/strong\u003e — 1\/2\", 3\/4\", and 1\" BSP cover the most common residential, commercial, and light industrial pipe extension scenarios in a single product family.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e — Order 1, 2, or 5 pieces per variant to match single-point repairs or multi-outlet installations without overstocking or making multiple orders.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌊\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSuited for Wet, Humid, and Saltwater Environments\u003c\/strong\u003e — Unlike 304 SS fittings, the 316 alloy holds up in bilge systems, dock plumbing, irrigation manifolds, and other stainless steel pipe fittings for outdoor use where moisture and salt are constant factors.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — BSP Male Thread Extension Pipe Nipple\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\u003eGrade 316 Stainless Steel (molybdenum-bearing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe) — Male both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Pipe Sizes\u003c\/th\u003e\n\u003ctd\u003e1\/2\" BSP, 3\/4\" BSP, 1\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e100mm (≈4\"), 150mm (≈5.9\"), 200mm (≈7.9\"), 300mm (≈11.8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Form\u003c\/th\u003e\n\u003ctd\u003eSee variant options (BSPP parallel or BSPT tapered — confirm with product images)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eMachined \/ natural stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eExcellent — suitable for marine, industrial, and outdoor environments\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) — verify for your application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Media\u003c\/th\u003e\n\u003ctd\u003eWater, air, mild chemicals — contact us to confirm for gas or aggressive media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 Pcs, 2 Pcs, or 5 Pcs (select above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\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\u003eBefore You Order:\u003c\/strong\u003e BSP and NPT threads are not interchangeable. Measure or check the thread markings on your existing fittings. If you're unsure whether your system uses BSP or NPT, contact us before purchasing.\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 length for my BSP extension nipple?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the gap between the two fittings you need to bridge. Available lengths are 100mm (≈4\"), 150mm (≈5.9\"), 200mm (≈7.9\"), and 300mm (≈11.8\"). Generally, choose the shortest length that comfortably spans the gap to minimize stress on the joint. If you're unsure, 150mm is typically a versatile starting point for most residential plumbing extensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the pressure rating of these 316 stainless steel pipe nipples?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e316 stainless steel BSP fittings are generally rated for working pressures up to 150 PSI (approximately 10 bar) in standard plumbing applications, though the actual rating depends on pipe diameter, wall thickness, and the connected system. Always verify with your system's engineer or refer to your local plumbing code for pressure-critical installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these pipe nipples suitable for outdoor or marine use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Grade 316 stainless steel contains molybdenum, which provides significantly better resistance to chloride corrosion compared to 304 SS. This makes it well-suited for marine environments, coastal installations, saltwater plumbing systems, and outdoor applications exposed to moisture and salt air.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these fittings use — NPT or BSP?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings use BSP (British Standard Pipe) threads, which are parallel (BSPP\/G-thread) male threads. BSP threads are not directly compatible with NPT (National Pipe Taper) threads. If your existing system uses NPT fittings, you will need a BSP-to-NPT adapter. BSP is the standard in the UK, Australia, and many parts of Asia and Europe.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant or PTFE tape with these fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. For BSPP (parallel) threads, a sealing method is required at the joint face — typically an O-ring or bonded seal washer. PTFE tape can also be used on the threads as a secondary measure. For BSPT (tapered BSP) variants, PTFE tape or thread sealant compound applied to the male threads is the standard practice. Always follow the fitting manufacturer's recommendation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these nipples for gas lines?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e316 stainless steel is generally compatible with many gas applications, but suitability depends on the specific gas type, pressure, and local code requirements. In most cases, you should consult a licensed gas fitter and verify that the fitting is rated and certified for gas use in your jurisdiction before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pipe size should I order — 1\/2\" vs 3\/4\" vs 1\"?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe pipe size refers to the BSP nominal bore size, not the outer diameter of the fitting. Match the size to your existing pipe or fitting thread: 1\/2\" BSP is common for residential water supply lines and small appliances; 3\/4\" BSP is typical for main supply branches and irrigation; 1\" BSP suits higher-flow commercial or industrial runs. Check the thread size stamped on your existing fittings if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003epipe size and length\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\u00262\"(100mm) \/ 1 Pcs","offer_id":52336631152914,"sku":"GLFBQLWGLBZSJ024786x1","price":7.06,"currency_code":"USD","in_stock":true},{"title":"1\u00262\"(100mm) \/ 2 Pcs","offer_id":52336631185682,"sku":"GLFBQLWGLBZSJ024786x2","price":11.82,"currency_code":"USD","in_stock":true},{"title":"1\u00262\"(100mm) \/ 5 Pcs","offer_id":52336631218450,"sku":"GLFBQLWGLBZSJ024786x5","price":27.59,"currency_code":"USD","in_stock":true},{"title":"1\u00262\"(150mm) \/ 1 Pcs","offer_id":52336631251218,"sku":"GLFBQLWGLBZSJ024787x1","price":9.32,"currency_code":"USD","in_stock":true},{"title":"1\u00262\"(150mm) \/ 2 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