{"id":5007,"date":"2026-09-17T04:34:11","date_gmt":"2026-09-17T04:34:11","guid":{"rendered":"https:\/\/www.henghuahose.com\/?post_type=product&#038;p=5007"},"modified":"2026-09-17T05:39:56","modified_gmt":"2026-09-17T05:39:56","slug":"bspt-male-plug-adapter-4t-sp","status":"publish","type":"product","link":"https:\/\/www.henghuahose.com\/ar\/product\/bspt-male-plug-adapter-4t-sp\/","title":{"rendered":"4T-SP BSPT Male Plug Adapter \u2014 4T-SP Adapter for Capping Tapered Ports"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/bspt-male-plug-adapter-4t-sp-spec.jpg\" alt=\"BSPT male plug hydraulic adapter 4T-SP specification and dimension chart\" \/><\/figure>\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">1. What a 4T-SP Adapter Does<\/h2>\r\n\r\n\r\n\r\n<p>The 4T-SP adapter is a single-ended BSPT male plug that closes a hydraulic port which is not in use. Its stud end carries an R (BSPT) taper pipe thread to ISO 7-1 and screws into a BSPT port on a manifold, valve block, pump, cylinder, filter head or pipe fitting. There is no second line connection, because the purpose of the part is to close the port rather than to join two lines.<\/p>\r\n\r\n\r\n\r\n<p>A plug has one interface only, so that interface decides whether the port stays dry. On a taper thread the seal is made on the thread flanks themselves, which means the thread form, the thread size and the thread preparation must all be correct, because there is no separate seal ring to fall back on.<\/p>\r\n\r\n\r\n\r\n<p>BSPT threads are widely used on older machinery, on imported equipment and on general pipework, so a taper plug is often needed where a parallel BSPP plug will not fit. The 4T-SP plug covers the taper port range from R1\/8&#8243;x28 up to R2&#8243;x11 in nine sizes.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">2. 4T-SP Specifications<\/h2>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.1 Connection 1 \u2014 BSPT male stud end (into the port)<\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Thread standard: ISO 7-1 taper pipe thread, R series, where the pressure-tight joint is made on the threads.<\/li>\r\n<li>Gender: male.<\/li>\r\n<li>Size range: R1\/8&#8243;x28 up to R2&#8243;x11, nine sizes in the published table.<\/li>\r\n<li>Sealing: metal-to-metal contact between the thread flanks, with a thread sealant applied at assembly.<\/li>\r\n<li>Mating port: a BSPT (Rc or Rp) threaded port to ISO 7-1.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.2 Connection 2 \u2014 closing head (no line connection)<\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Function: the head closes the stud end and provides the drive for tightening.<\/li>\r\n<li>Drive: external hex, dimension S1 in the table.<\/li>\r\n<li>Face: the head is a solid blank face; no washer is fitted, because sealing takes place on the taper thread.<\/li>\r\n<li>Mating part: none. The head connects to no hose, tube or fitting.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.3 Construction and Materials<\/h3>\r\n\r\n\r\n\r\n<p>The body is machined from bar stock on CNC lathes, and the taper thread is cut and gauged so that the plug engages the port over the correct number of turns. Standard material is carbon steel with trivalent chromium zinc plating (Cr3+) for general hydraulic service. Zinc-nickel plating, 304 stainless steel, 316 stainless steel and brass are available for corrosive and marine duties. Because the joint seals on the threads, no separate elastomer is fitted in the standard configuration; a thread sealant suitable for the fluid is applied at assembly.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.4 Pressure and Temperature<\/h3>\r\n\r\n\r\n\r\n<p>Pressure is not fixed by the part number alone. It is governed by the thread size, the wall thickness of the plug, the sealing method used at the port and the body material, so <strong>working pressure for these sizes is confirmed per order by HENGHUA engineering, based on the sealing method, thread size and material selected<\/strong>. Where an elastomer is used in an alternative configuration, its material limits apply as material facts: NBR approximately -30\u00b0C to +100\u00b0C, FKM approximately -20\u00b0C to +200\u00b0C, EPDM approximately -40\u00b0C to +120\u00b0C.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.5 Part Number and Dimension Table<\/h3>\r\n\r\n\r\n\r\n<p>Every value below is taken from the published series chart. All dimensions are in millimetres. E is the thread designation of the stud end, A is the thread length, L is the overall length of the plug, and S1 is the hex across flats of the head.<\/p>\r\n\r\n\r\n\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>PART NO.<\/th>\r\n<th>THREAD E<\/th>\r\n<th>A<\/th>\r\n<th>L<\/th>\r\n<th>S1<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>4T-02SP<\/td>\r\n<td>R1\/8&#8243;x28<\/td>\r\n<td>10<\/td>\r\n<td>16<\/td>\r\n<td>12<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-04SP<\/td>\r\n<td>R1\/4&#8243;x19<\/td>\r\n<td>14.5<\/td>\r\n<td>20<\/td>\r\n<td>14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-06SP<\/td>\r\n<td>R3\/8&#8243;x19<\/td>\r\n<td>15<\/td>\r\n<td>21<\/td>\r\n<td>17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-08SP<\/td>\r\n<td>R1\/2&#8243;x14<\/td>\r\n<td>20<\/td>\r\n<td>27<\/td>\r\n<td>22<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-12SP<\/td>\r\n<td>R3\/4&#8243;x14<\/td>\r\n<td>20<\/td>\r\n<td>29<\/td>\r\n<td>27<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-16SP<\/td>\r\n<td>R1&#8243;x11<\/td>\r\n<td>25.5<\/td>\r\n<td>36.5<\/td>\r\n<td>36<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-20SP<\/td>\r\n<td>R1.1\/4&#8243;x11<\/td>\r\n<td>26.5<\/td>\r\n<td>38.5<\/td>\r\n<td>46<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-24SP<\/td>\r\n<td>R1.1\/2&#8243;x11<\/td>\r\n<td>26.5<\/td>\r\n<td>42<\/td>\r\n<td>50<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4T-32SP<\/td>\r\n<td>R2&#8243;x11<\/td>\r\n<td>30<\/td>\r\n<td>47<\/td>\r\n<td>65<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n\r\n\r\n<p>Note on thread notation: a designation such as R1.1\/4&#8243;x11 means a 1 1\/4 inch BSPT taper thread with 11 threads per inch. The number after the x is the thread pitch in threads per inch.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">3. How to Read a 4T-SP Adapter Part Number<\/h2>\r\n\r\n\r\n\r\n<p>A 4T-SP part number has a fixed structure: series prefix, size code and suffix.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>4T<\/strong> identifies the BSPT male plug family, the taper thread plug of the British Adapters range.<\/li>\r\n<li><strong>SP<\/strong> is the suffix carried by this taper plug variant. The same size code appears in the parallel thread families of the range, so the suffix is what confirms which thread form you are ordering.<\/li>\r\n<li><strong>The two digits<\/strong> are the size code, expressed as the nominal bore in sixteenths of an inch. 02 is 2\/16 inch, or 1\/8 inch; 04 is 4\/16, or 1\/4 inch; 08 is 8\/16, or 1\/2 inch; 16 is 16\/16, or 1 inch; 20 is 20\/16, or 1 1\/4 inch; 32 is 32\/16, or 2 inch.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Worked example from the table: <strong>4T-08SP<\/strong>. The prefix 4T shows a BSPT male plug, and SP confirms the taper plug variant. The code 08 gives a 1\/2 inch nominal bore, so the thread is R1\/2&#8243;x14. The thread length A is 20 mm, the overall length L is 27 mm, and the hex across flats S1 is 22 mm, so the port must clear a 22 mm hex and the swing of the wrench.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">4. Installation and Fitment<\/h2>\r\n\r\n\r\n\r\n<p>Clean the port threads and remove old sealant, then apply a thread sealant suitable for the fluid and the operating temperature. Hand-start the plug and turn it in until it seats by hand; the taper thread engages progressively, so the plug becomes progressively tighter as it enters. Finish with a wrench on the hex, tightening until the plug is firm in the port. Do not drive a taper plug to a hard stop, because the joint is made on the thread flanks and excessive torque splits bosses and seizes threads.<\/p>\r\n\r\n\r\n\r\n<p>Never use a bonded seal washer or an O-ring to make a taper thread seal. A taper thread seals on the flanks, and a washer under the head changes the engagement depth without improving the joint. Do not mix parallel and taper parts: an R thread must go into an Rc or Rp port, and a G thread must go into a parallel port.<\/p>\r\n\r\n\r\n\r\n<p>Common fitment errors and their symptoms:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Fitting a taper plug without sealant. Symptom: a weep along the thread that grows with pressure.<\/li>\r\n<li>Fitting a taper plug into a parallel port. Symptom: the plug enters a few turns and then binds, with no sealing contact.<\/li>\r\n<li>Over-tightening a taper plug into a casting. Symptom: a cracked or bulged port boss.<\/li>\r\n<li>Leaving old sealant or tape in the port. Symptom: the plug stops short of proper engagement and weeps.<\/li>\r\n<li>Reusing a taper plug that has been deformed in service. Symptom: the plug reaches full depth with little resistance and still leaks.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Inspect the thread for stretching, galling and flattened crests before reusing a taper plug after service. A taper plug that has been over-tightened once may still seal, but it will not reach the same engagement depth again.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">5. Applications and Industries<\/h2>\r\n\r\n\r\n\r\n<p>Typical applications and industries for this plug include hydraulic systems, water jetting equipment, oil and gas service equipment, industrial machinery, construction machinery, agriculture, marine hydraulics and material handling equipment.<\/p>\r\n\r\n\r\n\r\n<p>Four concrete uses:<\/p>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li><strong>Capping a spare port.<\/strong> Manifolds, blocks and pipe fittings are often supplied with more ports than a given build needs. This taper plug closes the unused BSPT ports so the assembly can go into service without a blanking flange.<\/li>\r\n<li><strong>Isolating an unused branch.<\/strong> When a circuit branch is removed during a rebuild, its port stays open. A taper plug isolates that port from the rest of the system.<\/li>\r\n<li><strong>Capping a line during commissioning.<\/strong> On a test bench or on site, sub-circuits are pressurised one at a time while the remaining ports stay closed, which allows part of a machine to be commissioned without dismantling the rest.<\/li>\r\n<li><strong>Protecting a port during transport.<\/strong> Pumps, cylinders, blocks and pipe spools ship with their ports closed to keep out moisture, dust and insects and to protect the threads during handling.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<p>The taper plug is also used on general pipework and on imported machinery where BSPT ports are part of the original design.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">6. Replacement and Cross-Reference Guide<\/h2>\r\n\r\n\r\n\r\n<p>Identify a replacement by standard and sealing method, not by the source of the original part. BSPT threads are defined by ISO 7-1, and a plug that matches the thread size and form performs the same duty. Separate the thread families first: BSPT (taper, R) to ISO 7-1, BSPP (parallel, G) to ISO 228-1, JIS gas thread to JIS B 0203, and the metric and SAE families to their own standards.<\/p>\r\n\r\n\r\n\r\n<p>Measure these three things before ordering:<\/p>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li><strong>The thread.<\/strong> Measure the outside diameter of the male port thread near the port face and again toward the end. A taper thread is larger at the port face and smaller at the tip; a parallel thread measures the same along its whole length. Confirm the pitch with a thread gauge.<\/li>\r\n<li><strong>The sealing method.<\/strong> A taper port seals on the threads and needs a sealant. A flat face with a spot face takes a bonded seal washer, and a machined 60\u00b0 internal cone takes a cone seat plug. Match the replacement to the sealing method, not to the appearance of the old part.<\/li>\r\n<li><strong>The drive and the space.<\/strong> Measure the clearance around the port and compare it with the hex S1 and the length L. Where a wrench will not fit, the hollow hex taper plug of the 4TN series uses an internal hex drive with the same thread.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">7. Ordering, Packaging and Delivery<\/h2>\r\n\r\n\r\n\r\n<p>To place an order or request a quotation, send the series code, the full part number, the thread size, the material or plating, and the quantity. Example: 4T-08SP, R1\/2&#8243;x14, carbon steel with trivalent chromium zinc plating, 500 pieces. State whether the plugs will be used with a thread sealant or in a dry assembly, since that affects the surface finish and the packaging advice. Sizes or thread combinations outside the published table are quoted as specials from a drawing or from the mating port dimensions.<\/p>\r\n\r\n\r\n\r\n<p>Plugs are packed in sealed polyethylene bags inside cartons, with the part number, thread size, material and quantity printed on the label. Bulk cartons and labelled shelf packs are available for distributor stock. Sample orders are accepted for validation before a production order. Lead time is confirmed per order, since it depends on the size, the material grade and the order quantity.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">8. FAQ<\/h2>\r\n\r\n\r\n\r\n<p><strong>Q1. What is the difference between BSPP and BSPT, and can they be interchanged?<\/strong> BSPP is a parallel pipe thread to ISO 228-1, where the pressure-tight joint is not made on the threads; sealing comes from a 60\u00b0 cone seat or a bonded seal washer. BSPT is a taper pipe thread to ISO 7-1, where the joint is made on the threads and a sealant is required. The two are not interchangeable: a taper plug in a parallel port binds and leaks, and a parallel plug in a taper port never seats.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q2. What is the difference between a 60\u00b0 cone seat and a bonded seal, and which should I choose?<\/strong> A 60\u00b0 cone seat seals metal to metal between a cone on the stud end and a cone in the port, as defined for BSPP stud ends in ISO 1179. A bonded seal washer seals on a flat face, with the elastomer bonded to a metal backing ring. Neither applies to a taper thread joint, which seals on the thread flanks; choose the taper plug when the port thread is BSPT.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q3. How do I identify the correct 4T-SP adapter size?<\/strong> Measure the outside diameter of the male port thread and match it to the size code table; the two-digit code is the nominal bore in sixteenths of an inch, so 08 is 1\/2 inch and the thread is R1\/2&#8243;x14. Check that the thread tapers toward the tip, which confirms BSPT rather than BSPP, and confirm the pitch with a thread gauge.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q4. Does a 4T-SP plug need a sealant or a washer?<\/strong> It needs a thread sealant, because a BSPT joint seals on the thread flanks. A washer under the head does not seal a taper joint and can reduce the engagement depth of the thread. Choose a sealant that is compatible with the fluid and with the operating temperature, and apply it to the thread rather than to the head face. Where the fluid or the process cannot accept a sealant, a parallel thread port plug with a bonded seal is the correct alternative.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q5. How is the working pressure of this adapter determined?<\/strong> Working pressure is governed by the thread size, the wall thickness of the plug, the sealing method at the port and the body material, so it is not one figure for the whole series. Working pressure for these sizes is confirmed per order by HENGHUA engineering, based on the sealing method, thread size and material selected.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q6. What seal material should I select for my fluid and temperature?<\/strong> For a taper plug the primary choice is the thread sealant, not the elastomer. Where an elastomer is used, NBR suits mineral hydraulic oil at approximately -30\u00b0C to +100\u00b0C, FKM suits higher temperatures and aggressive fluids at approximately -20\u00b0C to +200\u00b0C, and EPDM suits water and water-glycol service at approximately -40\u00b0C to +120\u00b0C. Match the sealant and the elastomer to the fluid first and to the temperature second.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q7. What is the minimum order quantity and can I get samples?<\/strong> Sample orders are accepted so that the taper engagement can be validated in the actual port before a production order is placed. Minimum order quantity depends on the size, the material grade and the finish, and is confirmed with the quotation. Send the part numbers and the expected annual volume so that the sample and the production batch are quoted together.<\/p>\r\n\r\n\r\n\r\n<p><strong>Q8. Can a 4T-SP adapter be reused after it has been in service?<\/strong> Yes, if the thread is undamaged. Inspect for stretched or flattened thread crests, galling and corrosion, and clean out the old sealant before refitting. A taper plug that has been over-tightened may not reach the same engagement depth on the second fitting, so check the fit in the port before returning it to service.<\/p>\r\n\r\n\r\n\r\n<p>Browse the full <a href=\"https:\/\/www.henghuahose.com\/ar\/product-category\/hydraulic-adapters\/\" target=\"_blank\" rel=\"noopener\">Hydraulic Adapters<\/a> range for the complete family, or <a href=\"https:\/\/www.henghuahose.com\/ar\/contact\/\" target=\"_blank\" rel=\"noopener\">contact us<\/a> to request a quote, mill test reports, and samples.<\/p>","protected":false},"excerpt":{"rendered":"<p>The 4T-SP adapter is a BSPT male plug that caps spare, unused or isolated tapered ports on hydraulic blocks, pumps, cylinders and pipework. Its R thread to ISO 7-1 seals on the thread flanks with a suitable thread sealant, so no washer is required. Machined from carbon steel with trivalent chromium zinc plating, with 304 or 316 stainless steel available for corrosive service, in sizes from R1\/8&#8243;x28 to R2&#8243;x11, with an external hex for standard wrench access.<\/p>","protected":false},"featured_media":5005,"comment_status":"open","ping_status":"closed","template":"","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[1426],"product_tag":[1747,1727,1748,1741,1749],"class_list":{"0":"post-5007","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-hydraulic-adapters","7":"product_tag-4t-sp-adapter","8":"product_tag-british-standard-pipe-adapter","9":"product_tag-bspt-plug-adapter","10":"product_tag-hydraulic-plug-adapter","11":"product_tag-taper-thread-plug","12":"desktop-align-left","13":"tablet-align-left","14":"mobile-align-left","15":"ast-product-gallery-layout-horizontal-slider","16":"ast-product-tabs-layout-horizontal","18":"first","19":"instock","20":"shipping-taxable","21":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.5 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>4T-SP Adapter BSPT Male Plug with Taper Thread, ISO 7-1<\/title>\n<meta name=\"description\" content=\"The 4T-SP adapter is a BSPT male plug for capping spare tapered ports. ISO 7-1 taper thread seals on the flanks, sizes R1\/8 to R2 for general pipework.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.henghuahose.com\/ar\/product\/bspt-male-plug-adapter-4t-sp\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4T-SP BSPT Male Plug Adapter \u2014 4T-SP Adapter for Capping Tapered Ports\" \/>\n<meta property=\"og:description\" content=\"The 4T-SP adapter is a BSPT male plug for capping spare tapered ports. 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