{"product_id":"g-taps-bspf-british-standard-pipe-parallel","title":"G TAPS BSPF BRITISH STANDARD PIPE PARALLEL","description":"\u003cp\u003eSutton Tools manufactures a comprehensive range of G (BSPF - British Standard Pipe Parallel) thread taps designed for both light trade maintenance and high-performance industrial production. These 55° parallel pipe thread taps are widely used for gas, plumbing, and fluid-power fittings.\u003c\/p\u003e\n\u003cdiv class=\"AdPoic\" role=\"heading\"\u003e\u003cstrong\u003eBREAKDOWN OF 1\/8 X 28\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" role=\"heading\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" role=\"heading\"\u003e1. The \"1\/8\" Nominal Size\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003eIn pipe threading, 1\/8 inch does \u003cstrong class=\"Yjhzub\"\u003enot\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e measure the physical outside diameter of the metal thread. It historically refers to the approximate \u003cstrong class=\"Yjhzub\"\u003einside diameter (ID)\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e of the steel pipe. The actual physical outside diameter (OD) of a 1\/8 BSPF thread is much larger, measuring \u003cstrong class=\"Yjhzub\"\u003e0.383 inches 9.73mm\u003c\/strong\u003e.\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" role=\"heading\"\u003e2. The \"28\" Pitch\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003eThis number defines the thread density. There are exactly \u003cstrong class=\"Yjhzub\"\u003e28 crests per axial inch\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e of thread length. To find the distance from one thread point to the next (the pitch), you divide 1 inch by 28.\u003cbr\u003ePitch= 1 inch Divided by 28 = 0.0357 inches 0.907mm\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"AdPoic\" role=\"heading\"\u003e3. The \"BSPF\" Profile\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eParallel Threads\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Unlike BSPT (tapered) threads which seal by binding together, BSPF threads maintain a \u003cstrong class=\"Yjhzub\"\u003econstant diameter\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e along their entire length. They require a sealing washer, gasket, or O-ring at the base of the joint to prevent leaks.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003e55° Whitworth Form\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: The thread profile features a \\(55^{\\circ }\\) V-shape angle with rounded crests (tops) and roots (bottoms), unique to British standards\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003e\n\u003cstrong\u003e1. Taper Tap (The Starter) \u003c\/strong\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eDesign\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Features a long, gradual chamfer at the tip covering the first \u003cstrong class=\"Yjhzub\"\u003e7 to 10 threads\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003ePurpose\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Used to start the threading process. The long taper allows the tool to easily enter the drilled hole, align straight, and gently begin cutting the first shallow groove.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eLimitation\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: It cannot cut a complete thread to the bottom of a hole because the tip is narrow and lacks full-sized cutting teeth.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd||[]--\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003e\n\u003cstrong\u003e2. Intermediate \/ Plug Tap (The Follower)\u003c\/strong\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eDesign\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Features a shorter chamfer at the tip covering the first \u003cstrong class=\"Yjhzub\"\u003e3 to 5 threads\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003ePurpose\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Used after the Taper tap to cut the threads deeper and closer to full size. In a \"through-hole\" (a hole drilled all the way through the metal), an Intermediate tap is often the final tap needed to finish the job.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eNote on Terminology\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: In the UK, Australia, and BSW standards, this is widely called an \u003cem class=\"eujQNb\"\u003eIntermediate\u003c!--TgQPHd||[]--\u003e\u003c\/em\u003e tap. In the US, it is commonly referred to as a \u003cem class=\"eujQNb\"\u003ePlug\u003c!--TgQPHd||[]--\u003e\u003c\/em\u003e tap.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd||[]--\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003e\n\u003cstrong\u003e3. Bottoming Tap (The Finisher) \u003c\/strong\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eDesign\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Features a very short chamfer at the tip covering only \u003cstrong class=\"Yjhzub\"\u003e1 to 2 threads\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e. The rest of the tap features full-sized, sharp cutting teeth.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/p\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003ePurpose\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Used exclusively to finish \"blind holes\" (holes that stop mid-way through the metal and do not go all the way through). It allows you to cut full, usable threads right down to the very bottom floor of the hole.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"T286Pc\"\u003e\u003cstrong class=\"Yjhzub\"\u003eLimitation\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Never use this tap to start a hole. Because it has no guiding taper, it will wobble, cross-thread, or immediately snap under the sudden cutting pressure.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sutton Tools","offers":[{"title":"1\/8 X 28 \/ TAPER","offer_id":47943992705218,"sku":"T4790973","price":40.0,"currency_code":"AUD","in_stock":false},{"title":"1\/8 X 28 \/ INTERMEDIATE","offer_id":47943992737986,"sku":"T4800973","price":40.0,"currency_code":"AUD","in_stock":true},{"title":"1\/8 X 28 \/ BOTTOMING","offer_id":47943992770754,"sku":"T4810973","price":40.0,"currency_code":"AUD","in_stock":true},{"title":"1\/4 X 19 \/ TAPER","offer_id":47943992803522,"sku":"T4791316","price":57.0,"currency_code":"AUD","in_stock":true},{"title":"1\/4 X 19 \/ INTERMEDIATE","offer_id":47943992836290,"sku":"T4891316","price":57.0,"currency_code":"AUD","in_stock":true},{"title":"1\/4 X 19 \/ BOTTOMING","offer_id":47943992869058,"sku":"T4811316","price":57.0,"currency_code":"AUD","in_stock":true},{"title":"3\/8 X 19 \/ TAPER","offer_id":47943992901826,"sku":"T4791666","price":84.0,"currency_code":"AUD","in_stock":false},{"title":"3\/8 X 19 \/ INTERMEDIATE","offer_id":47943992934594,"sku":"T4801666","price":84.0,"currency_code":"AUD","in_stock":true},{"title":"3\/8 X 19 \/ BOTTOMING","offer_id":47943992967362,"sku":"T4811666","price":84.0,"currency_code":"AUD","in_stock":true},{"title":"1\/2 X 14 \/ TAPER","offer_id":47943993000130,"sku":"T4792096","price":100.0,"currency_code":"AUD","in_stock":true},{"title":"1\/2 X 14 \/ INTERMEDIATE","offer_id":47943993032898,"sku":"T4802096","price":100.0,"currency_code":"AUD","in_stock":true},{"title":"1\/2 X 14 \/ BOTTOMING","offer_id":47943993065666,"sku":"T4812096","price":100.0,"currency_code":"AUD","in_stock":true},{"title":"3\/4 X 14 \/ TAPER","offer_id":47943993098434,"sku":"T4792644","price":100.0,"currency_code":"AUD","in_stock":false},{"title":"3\/4 X 14 \/ INTERMEDIATE","offer_id":47943993131202,"sku":"T4802644","price":100.0,"currency_code":"AUD","in_stock":false},{"title":"3\/4 X 14 \/ BOTTOMING","offer_id":47943993163970,"sku":"T4812644","price":100.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/6335\/8914\/files\/TAPMETRIC_35b985e0-62c8-4a47-a384-2856908b35ba.png?v=1782178735","url":"https:\/\/www.srbindustrialsupplies.com\/products\/g-taps-bspf-british-standard-pipe-parallel","provider":"SRB INDUSTRIAL SUPPLY","version":"1.0","type":"link"}