{"title":"Size 5\/16-18 - Type 18-8 Stainless Phillips Flat Head Machine Screws","description":"\u003ch4\u003eThe length of a pan head screw is determined by measuring from underneath the head to the end of the screw. Type 18-8 stainless steel has a high resistance to rust and corrosion and may be mildly magnetic. \u003cspan\u003eClick on each size below for more information.\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/MS_Flat_Head_Screw_diagram.jpg?v=1764573598\"\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h4\u003e","products":[{"product_id":"size-5-16-18-x-1-2-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 1\/2\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536633918,"sku":"8-FMPF-31C050","price":0.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_8ac1a12a-0b08-4630-b075-2ad66258f22f.jpg?v=1764420177"},{"product_id":"size-5-16-18-x-3-4-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 3\/4\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536666686,"sku":"8-FMPF-31C075","price":0.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_7fb85f12-b513-4bf6-bc4d-d213ed995c67.jpg?v=1764420178"},{"product_id":"size-5-16-18-x-1-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 1\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536699454,"sku":"8-FMPF-31C100","price":0.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_c37b45c8-a640-47e5-8788-c2500dd2125c.jpg?v=1764420181"},{"product_id":"size-5-16-18-x-1-1-4-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 1-1\/4\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536732222,"sku":"8-FMPF-31C125","price":0.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_2db17852-bb7f-4a79-8c3c-9f29081ce4de.jpg?v=1764420181"},{"product_id":"size-5-16-18-x-1-1-2-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 1-1\/2\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536764990,"sku":"8-FMPF-31C150","price":0.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_2e7cc1a0-fe9e-4e31-9461-236f1f9c985b.jpg?v=1764420182"},{"product_id":"size-5-16-18-x-2-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 2\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536797758,"sku":"8-FMPF-31C200","price":0.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_891ebe07-95a4-43ca-bae7-050f24210c51.jpg?v=1764420183"},{"product_id":"size-5-16-18-x-2-1-2-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 x 2-1\/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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 2-1\/2\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536830526,"sku":"8-FMPF-31C250","price":0.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_a9d4f50c-4251-4118-8006-37c81a8f881c.jpg?v=1764420186"},{"product_id":"size-5-16-18-x-3-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 x 3\" 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 3\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536863294,"sku":"8-FMPF-31C300","price":0.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_2c28056b-6122-42b3-9964-e94499ea327d.jpg?v=1764420187"},{"product_id":"size-5-16-18-x-3-1-2-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 x 3-1\/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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 3-1\/2\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536896062,"sku":"8-FMPF-31C350","price":0.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_7a7d7b39-0ba6-466a-86a3-216e6eb74560.jpg?v=1764420187"},{"product_id":"size-5-16-18-x-4-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 x 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 4\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275536928830,"sku":"8-FMPF-31C400","price":1.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_7dd4dd72-aaa0-42ff-a159-330e642bddf8.jpg?v=1764420188"},{"product_id":"size-5-16-18-x-5-stainless-steel-phillips-drive-flat-head-machine-screws","title":"Machine Screw Phillips Drive Flat Head 5\/16-18 x 5\" 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_MS_20Flat_20Head_20Screw.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 = 5\/16-18\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA = .31\" (Screw Diameter)\u003cbr\u003eL = 5\" (Length)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eD = .597\" (Head Diameter)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eH =.191\" (Head Height)\u003cbr\u003eCountersink = 82°\u003cbr\u003ePhillips Drive = #4 \u003cbr\u003eDrill Size = F\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":42275562913854,"sku":"8-FMPF-31C500","price":1.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/files\/stainless_20phillips_20flat_20machine_20screw-500x500_056d0619-3e39-4184-851b-25014fd2c4f6.jpg?v=1764421179"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/6193\/4142\/collections\/Category_box_Size_5-16-18-250x250_0d723469-d218-4deb-bee9-30d8c15030bf.jpg?v=1764574107","url":"https:\/\/marineboltsupply.com\/collections\/size-5-16-18-type-18-8-stainless-phillips-flat-head-machine-screws.oembed","provider":"Marine Bolt Supply","version":"1.0","type":"link"}