{"product_id":"bsp-brass-reducing-hex-bush","title":"BSP Brass Reducing Hexagon Bush — Male to Female Thread Pipe Fittings","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBSP Brass Reducing Hexagon Bush — Reliable Male-to-Female Thread Reduction for Plumbing \u0026amp; Hydraulic Systems\u003c\/h2\u003e\n\u003cp\u003eWhen your pipe system calls for a step-down connection between two different thread sizes, a mismatched fitting can mean leaks, downtime, and costly repairs. Whether you're a plumber retrofitting an older system, a DIYer building a compressed air line, or a technician maintaining hydraulic equipment, having the right BSP brass reducing hexagon bush on hand makes the job clean and straightforward.\u003c\/p\u003e\n\u003cp\u003eEach fitting is a solid brass hexagon bush machined with a male BSP thread on the larger end and a female BSP thread on the smaller end, allowing you to reduce from one pipe size to another within a single compact body. Available in a wide range of size combinations — from 1\/4\" × 1\/8\" (M6 × M3 nominal) up to 2\" × 1-1\/2\" — these bushes cover the most common reduction steps used in residential, commercial, and light industrial plumbing. The hexagonal body profile accepts a standard wrench for secure, controlled installation without slipping.\u003c\/p\u003e\n\u003cp\u003eTypical applications include reducing BSP tee or elbow ports to accept smaller-diameter gauges or sensors, stepping down supply lines in compressed air manifolds, and adapting legacy pipe runs to modern fittings in heating and cooling systems. The compact hex-body design also makes these bushes a go-to choice for tight-space installations where a full coupling or union would not fit.\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 BSP (British Standard Pipe). These fittings are \u003cstrong\u003enot\u003c\/strong\u003e directly compatible with NPT threads. If your system uses NPT, a BSP-to-NPT adapter is required.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These BSP Brass Reducing Hexagon Bushes\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-to-Female BSP Thread Design\u003c\/strong\u003e — Reduces pipe diameter in a single fitting, eliminating the need for additional couplings or adapters in your BSP plumbing system.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔶\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eHexagonal Body for Wrench Grip\u003c\/strong\u003e — The six-sided profile gives a positive wrench purchase, making installation and removal straightforward even in confined spaces.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🟡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSolid Brass Construction\u003c\/strong\u003e — Brass offers natural corrosion resistance, good machinability, and compatibility with water, air, and many hydraulic fluids — a dependable choice for reducing bush fittings.\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 — Available from 1\/4\" × 1\/8\" up to 2\" × 1-1\/2\" BSP, covering the most common male-to-female thread reduction combinations used in residential and light commercial systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Application Compatibility\u003c\/strong\u003e — Suitable for water supply lines, compressed air systems, hydraulic circuits, and low-pressure gas lines (subject to local codes), making these bushes a multi-purpose addition to any fitting inventory.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCompact, Low-Profile Form Factor\u003c\/strong\u003e — The short hex-body length keeps the overall assembly tight, reducing the footprint of your pipe reduction and leaving more room for adjacent components.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — BSP Brass Reducing Hexagon Bush Fittings\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\u003eReducing Hexagon Bush\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Configuration\u003c\/th\u003e\n\u003ctd\u003eMale (larger) × Female (smaller)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody Shape\u003c\/th\u003e\n\u003ctd\u003eHexagonal (wrench-flat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Male Sizes\u003c\/th\u003e\n\u003ctd\u003e1\/4\", 3\/8\", 1\/2\", 3\/4\", 1\", 1-1\/4\", 1-1\/2\", 2\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Female Sizes\u003c\/th\u003e\n\u003ctd\u003e1\/8\", 1\/4\", 3\/8\", 1\/2\", 3\/4\", 1\", 1-1\/4\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural brass (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Working Pressure\u003c\/th\u003e\n\u003ctd\u003eSee variant options — generally up to 150–200 PSI for water\/air; contact us to confirm for hydraulic use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece (select variant for quantity options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Media\u003c\/th\u003e\n\u003ctd\u003eWater, air, hydraulic fluid, low-pressure gas (verify local codes)\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\u003eSize Note:\u003c\/strong\u003e BSP thread sizes are nominal, not actual OD measurements. Always verify thread size with a gauge before ordering if you are unsure. Refer to the variant selector for the full list of male × female size combinations.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size BSP reducing bush for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the male (larger) thread on your pipe or fitting first, then measure the female (smaller) port you need to connect to. BSP sizes are nominal — for example, a 1\/2\" BSP thread has an actual OD of approximately 20.9mm (0.825\"). Select the variant that matches your male inlet size (M) and female outlet size (F). When in doubt, use a thread gauge or consult your fitting's documentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating do these brass reducing bushes typically handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass BSP hexagon bushes generally handle working pressures up to approximately 150–200 PSI for water and air applications, though the exact rating depends on the size and wall thickness of the specific variant. For high-pressure hydraulic or steam applications, please contact us to confirm suitability before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these fittings suitable for outdoor or corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass offers good natural corrosion resistance and is generally suitable for outdoor use in moderate environments. It performs well with water, air, and many non-aggressive fluids. For highly corrosive environments (e.g., salt spray, strong acids), stainless steel fittings are typically recommended instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these bushes use — BSP or NPT?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings use BSP (British Standard Pipe) threads, which are the standard in the UK, Europe, Australia, and many other regions. BSP threads are \u003cstrong\u003enot\u003c\/strong\u003e directly compatible with NPT (National Pipe Taper) threads used in North America. If your system uses NPT fittings, you will need a BSP-to-NPT adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these for gas line connections?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass fittings are commonly used in low-pressure gas applications (such as natural gas and LPG) in many countries. However, gas installations are subject to local codes and regulations. Always verify compliance with your local standards and consult a licensed professional before using any fitting in a gas line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant (PTFE tape) when installing these fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. BSPT (tapered) threads generally require PTFE tape or thread sealant compound to achieve a leak-free seal. BSPP (parallel) threads typically rely on a bonded seal or O-ring at the face. Check whether your specific variant uses tapered or parallel threads and apply the appropriate sealant method.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tool do I need to install a hexagon bush?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA standard open-end wrench or adjustable wrench sized to the hex flats of the bush is all you need. The hexagonal body provides a secure grip point for tightening. Avoid over-tightening, as brass can be damaged by excessive torque — typically hand-tight plus 1–2 turns with a wrench is sufficient for most applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size and thread combination above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M1\u00264\" x F1\u00268\" \/ 1","offer_id":52331580817682,"sku":"WBJHHZGLBZSJ023100x1","price":4.56,"currency_code":"USD","in_stock":true},{"title":"M3\u00268\" x F1\u00268\" \/ 1","offer_id":52331580850450,"sku":"WBJHHZGLBZSJ023101x1","price":4.9,"currency_code":"USD","in_stock":true},{"title":"M3\u00268\" x F1\u00264\" \/ 1","offer_id":52331580883218,"sku":"WBJHHZGLBZSJ023102x1","price":4.96,"currency_code":"USD","in_stock":true},{"title":"M1\u00262\" x F1\u00268\" \/ 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