{"title":"Stainless Square Head Pipe Plugs","description":"\u003cdiv\u003e\n\u003cspan\u003eMarine Bolt Supply offers (Marine Grade) Type 316 Stainless Steel \u003c\/span\u003e\u003cspan\u003eSteel Square Head Pipe Plugs\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4\u003e\u003cspan\u003eThe pipe plugs offered on this page are all standard schedule 40, 150lb threaded, type 316 stainless steel.\u003c\/span\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ca style=\"color: #ff5733;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_pipe_plugs.pdf?v=1765171498\" target=\"_blank\"\u003eClick here for design \u0026amp; dimensions information\u003c\/a\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4\u003e\u003cspan\u003e*Click on each size below for more information\u003c\/span\u003e\u003c\/h4\u003e\n\u003c\/div\u003e","products":[{"product_id":"pipe-plug-square-head-1-8-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 1\/8 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .28\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 1\/8 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = (N\/A) \u003cbr\u003eL1 = (N\/A) \u003cbr\u003eL2 = (N\/A) \u003cbr\u003eh = .71\" , h1 = .39\", h(2) = .31\" \u003cbr\u003eI = (N\/A)\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275474997310,"sku":"6-PFSP-S40-01","price":1.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_987b1134-c55c-4791-9f65-ae0224a39536.jpg?v=1764418098"},{"product_id":"pipe-plug-square-head-1-4-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 1\/4 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .35\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 1\/4 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = (N\/A) \u003cbr\u003eL1 = (N\/A) \u003cbr\u003eL2 = (N\/A) \u003cbr\u003eh = .75\" , h1 = .39\", h(2) = .35\" \u003cbr\u003eI = (N\/A)\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475030078,"sku":"6-PFSP-S40-02","price":2.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_4046be5a-350a-482f-b743-ca1c2f353de8.jpg?v=1764418100"},{"product_id":"pipe-plug-square-head-3-8-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 3\/8 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .39\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 3\/8 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = (N\/A) \u003cbr\u003eL1 = (N\/A) \u003cbr\u003eL2 = (N\/A) \u003cbr\u003eh = .79\" , h1 = .43\", h(2) = .35\" \u003cbr\u003eI = (N\/A)\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475062846,"sku":"6-PFSP-S40-03","price":2.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_5d176b61-dadc-4277-ba56-e97d96679e1b.jpg?v=1764418100"},{"product_id":"pipe-plug-square-head-1-2-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 1\/2 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .51\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 1\/2 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = .57\" \u003cbr\u003eL1 = .47\" \u003cbr\u003eL2 = .83\" \u003cbr\u003eh = .91\" , h1 = .51\", h(2) = .39\" \u003cbr\u003eI = .10\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475095614,"sku":"6-PFSP-S40-05","price":4.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_ecca7322-877d-4370-8052-f087c2d8217a.jpg?v=1764418102"},{"product_id":"pipe-plug-square-head-3-4-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 3\/4 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .71\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 3\/4 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = .71\" \u003cbr\u003eL1 = .57\" \u003cbr\u003eL2 = 1.02\" \u003cbr\u003eh = 1.18\" , h1 = .71\", h(2) = .47\" \u003cbr\u003eI = .10\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475128382,"sku":"6-PFSP-S40-07","price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_f615cfd7-c22b-41af-9d6e-6fdfea783102.jpg?v=1764418104"},{"product_id":"pipe-plug-square-head-1-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 1 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .75\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 1 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = .98\" \u003cbr\u003eL1 = .71\" \u003cbr\u003eL2 = 1.22\" \u003cbr\u003eh = 1.30\"\" , h1 = .83\", h(2) = .47\" \u003cbr\u003eI = .10\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475161150,"sku":"6-PFSP-S40-10","price":6.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_a0f3ff27-111a-4642-a715-b177232596c9.jpg?v=1764418105"},{"product_id":"pipe-plug-square-head-1-1-4-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 1-1\/4 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = .91\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 1-1\/4 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = 1.34\" \u003cbr\u003eL1 = .75\" \u003cbr\u003eL2 = 1.42\" \u003cbr\u003eh = 1.54\" , h1 = .91\", h(2) = .63\" \u003cbr\u003eI = .10\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475193918,"sku":"6-PFSP-S40-12","price":14.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_4ef7104a-723b-4b39-a49f-1e7033c68042.jpg?v=1764418106"},{"product_id":"pipe-plug-square-head-1-1-2-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 1-1\/2 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = 1.02\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 1-1\/2 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = 1.54\" \u003cbr\u003eL1 = .83\" \u003cbr\u003eL2 = 1.42\" \u003cbr\u003eh = 1.54\" , h1 = .91\", h(2) = .67\" \u003cbr\u003eI = .10\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475226686,"sku":"6-PFSP-S40-15","price":16.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_d3ba42c9-4029-4e70-a88c-355b1459dafe.jpg?v=1764418107"},{"product_id":"pipe-plug-square-head-2-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 2 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = 1.14\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 2 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = 1.97\" \u003cbr\u003eL1 = .91\" \u003cbr\u003eL2 = 1.65\" \u003cbr\u003eh = 1.77\" , h1 = 1.02\", h(2) = .75\" \u003cbr\u003eI = .10\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475259454,"sku":"6-PFSP-S40-20","price":22.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_47d2dad5-8535-4212-8911-5a350d65d8ce.jpg?v=1764418109"},{"product_id":"pipe-plug-square-head-2-1-2-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 2-1\/2 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = 1.57\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 2-1\/2 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = 2.36\" \u003cbr\u003eL1 = .94\" \u003cbr\u003eL2 = 1.61\" \u003cbr\u003eh = 1.89\" , h1 = 1.10\", h(2) = .79\" \u003cbr\u003eI = .12\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475292222,"sku":"6-PFSP-S40-25","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_bb6ef889-d8e8-4a6b-8c0c-79c9ba747a1f.jpg?v=1764418110"},{"product_id":"pipe-plug-square-head-3-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 3 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = 1.73\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 3 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = 2.95\" \u003cbr\u003eL1 = 1.06\" \u003cbr\u003eL2 = 1.97\" \u003cbr\u003eh = 2.13\" , h1 = 1.26\", h(2) = .87\" \u003cbr\u003eI = .12\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475324990,"sku":"6-PFSP-S40-30","price":42.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_ee9832c0-54aa-489e-980d-ec3ee3012e40.jpg?v=1764418111"},{"product_id":"pipe-plug-square-head-4-npt-s40-type-316-stainless","title":"Pipe Plug Square Head 4 NPT S40 Type 316 Stainless","description":"\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/Pipe_20Fittings_plug.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eb = 2.32\" (flat to flat)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003eD1 = 4 Male NPT \u003c\/span\u003e\u003cspan style=\"font-family: inherit; color: rgb(0, 0, 0);\"\u003e(nominal) OD\u003cbr\u003eD2 = 3.98\" \u003cbr\u003eL1 = 1.22\" \u003cbr\u003eL2 = 2.17\" \u003cbr\u003eh = 2.32\"\" , h1 = 1.46\", h(2) = .87\" \u003cbr\u003eI = .12\"\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Marine Bolt Supply","offers":[{"title":"Default Title","offer_id":42275475357758,"sku":"6-PFSP-S40-40","price":74.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/316_20Stainless_20Pipe_20Plug_20Square_20watermarked-500x500_e3a7bb2e-fc7b-4da4-8597-b7fc89e3a927.jpg?v=1764418112"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/collections\/316_Stainless_Pipe_Plug_Square-200x180-250x250.jpg?v=1765171528","url":"https:\/\/marineboltsupply.com\/collections\/stainless-square-head-pipe-plugs.oembed","provider":"Marine Bolt Supply","version":"1.0","type":"link"}