{"title":"Type 18-8 Stainless Socket Head Bolts - Size 4-40","description":"\u003ch4\u003e\n\u003cspan\u003eLength is measured from underneath the head. Longer bolts won't be fully threaded. Type 18-8 stainless steel has a high resistance to rust and corrosion and may be mildly magnetic. For chemical, salt water or coastal environments type 316 stainless is highly recommended. \u003c\/span\u003e\u003cspan\u003eSelect the size below for more information.\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_socket_cap_screw_size_8dba5ee4-8ec2-4953-894d-7f8f1ba62990.jpg?v=1764157185\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: The pictures below are stock photos. They do not represent the individual sizes. Select the specific size for more details. \u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"size-4-40-x-1-4-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 1\/4\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 1\/4\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539058750,"sku":"8-FSC-004C025","price":0.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadbolt.jpg?v=1771354657"},{"product_id":"size-4-40-x-3-8-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 3\/8\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 3\/8\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539124286,"sku":"8-FSC-004C037","price":0.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadbolt.jpg?v=1771354657"},{"product_id":"size-4-40-x-1-2-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 1\/2\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 1\/2\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539157054,"sku":"8-FSC-004C050","price":0.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadbolt.jpg?v=1771354657"},{"product_id":"size-4-40-x-5-8-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 5\/8\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 5\/8\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539189822,"sku":"8-FSC-004C062","price":0.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadbolt.jpg?v=1771354657"},{"product_id":"size-4-40-x-3-4-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 3\/4\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 3\/4\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539222590,"sku":"8-FSC-004C075","price":0.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadbolt.jpg?v=1771354657"},{"product_id":"size-4-40-x-1-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 1\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 1\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539255358,"sku":"8-FSC-004C100","price":0.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadboltwithshank.jpg?v=1771355152"},{"product_id":"size-4-40-x-1-1-4-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 1-1\/4\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 1-1\/4\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539288126,"sku":"8-FSC-004C125","price":0.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadboltwithshank.jpg?v=1771355152"},{"product_id":"size-4-40-x-1-1-2-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 1-1\/2\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 1-1\/2\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539320894,"sku":"8-FSC-004C150","price":0.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadboltwithshank.jpg?v=1771355152"},{"product_id":"size-4-40-x-2-type-18-8-stainless-steel-socket-head-bolt","title":"Socket Cap 4-40 x 2\" Type 18-8 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\/Screws_socket_20bolt_20size.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 color:=\"\" open=\"\" rgb sans sans-serif style=\"font-family: \"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSize = 4-40\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .112\" (#4) Bolt Diameter\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eL = 2\" (Length)\u003cbr\u003eHD = .183\" (Head Diameter)\u003cbr\u003eH = .112\" (Head Height)\u003cbr\u003eDS = 3\/32 (Drive Size)\u003cbr\u003eThreads per inch = 40\u003cbr\u003eThread Type = Coarse\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":42275539353662,"sku":"8-FSC-004C200","price":0.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainlesssocketheadboltwithshank.jpg?v=1771355152"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/collections\/Category_box_Size_4-40-250x250_d205c1ad-9573-4d23-bb1f-47da5349e1b1.jpg?v=1764157470","url":"https:\/\/marineboltsupply.com\/collections\/type-18-8-stainless-socket-head-bolts-size-4-40.oembed","provider":"Marine Bolt Supply","version":"1.0","type":"link"}