{"product_id":"slotted-countersunk-screws-m1-2-m6-a2-stainless","title":"Slotted Countersunk Machine Screws – A2 Stainless Steel, M1.2 to M6, Fully Threaded","description":"\u003cstyle\u003e\n  \/* 统一前缀 hdiy-，避免样式冲突 *\/\n  .hdiy-product-wrap {\n    margin: 0;\n    padding: 0;\n  }\n  .hdiy-product-wrap h2,\n  .hdiy-product-wrap h3 {\n    margin-top: 1.5em;\n    margin-bottom: 0.5em;\n    font-weight: 600;\n  }\n  .hdiy-product-wrap p {\n    margin-bottom: 1em;\n    line-height: 1.5;\n  }\n  .hdiy-features-list {\n    list-style: none;\n    padding-left: 0;\n  }\n  .hdiy-features-list li {\n    margin-bottom: 0.75em;\n    padding-left: 1.5em;\n    position: relative;\n    line-height: 1.4;\n  }\n  .hdiy-features-list li::before {\n    content: \" \";\n    position: absolute;\n    left: 0;\n    top: 0;\n  }\n  .hdiy-table-wrapper {\n    overflow-x: auto;\n    margin: 1.2em 0;\n  }\n  .hdiy-specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n    background: #fff;\n    min-width: 300px;\n  }\n  .hdiy-specs-table th,\n  .hdiy-specs-table td {\n    border: 1px solid #ddd;\n    padding: 10px 12px;\n    text-align: left;\n    vertical-align: top;\n  }\n  .hdiy-specs-table th {\n    background-color: #f5f5f5;\n    font-weight: 600;\n    width: 35%;\n  }\n  .hdiy-faq-item {\n    margin-bottom: 1.25rem;\n    border-bottom: 1px solid #eee;\n    padding-bottom: 0.75rem;\n  }\n  .hdiy-faq-question {\n    font-weight: 700;\n    margin-bottom: 0.35rem;\n    font-size: 1rem;\n  }\n  .hdiy-faq-answer {\n    margin-top: 0;\n    line-height: 1.45;\n    color: #2c2c2c;\n  }\n  @media (max-width: 640px) {\n    .hdiy-specs-table th,\n    .hdiy-specs-table td {\n      padding: 8px 10px;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hdiy-product-wrap\"\u003e\n  \n  \u003c!-- Product Overview --\u003e\n  \u003ch2\u003e🔩 Product Overview: Slotted Countersunk Machine Screws – A2 Stainless Steel (M1.2 to M6)\u003c\/h2\u003e\n  \u003cp\u003eIf you're restoring vintage electronics, working on antique instruments, or simply prefer the simplicity of a traditional slotted drive, these A2 stainless steel countersunk machine screws are exactly what you need. The 90° flat head sinks flush into countersunk holes for a smooth, professional finish – perfect for panel mounting, woodworking, and equipment assembly. The single slot (flathead) drive gives you precise manual control without cam‑out. Made from A2 (304) stainless steel, they resist rust and corrosion, making them suitable for both indoor and outdoor use. Available in metric sizes M1.2, M1.6, M2, M4, M5, and M6, with a variety of lengths (from 3mm to 25mm). Fully threaded with standard coarse pitch. Select your size and quantity – ideal for repairs and custom projects.\u003c\/p\u003e\n  \n  \u003c!-- Key Features List --\u003e\n  \u003ch2\u003e✨ Why Choose A2 Stainless Slotted Countersunk Screws\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSlotted (flathead) drive\u003c\/strong\u003e – Classic single‑slot design allows for precise manual tightening with a standard flathead screwdriver. No special bits required.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCountersunk flat head (90°)\u003c\/strong\u003e – Sits flush in tapered holes for a clean, snag‑free surface. Ideal for panel mounting and visible assemblies.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA2 stainless steel (304 grade)\u003c\/strong\u003e – Excellent corrosion resistance for indoor and outdoor use. Won't rust – perfect for marine, kitchen, and industrial environments.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWide size range: M1.2, M1.6, M2, M4, M5, M6\u003c\/strong\u003e – From micro screws for electronics (M1.2) up to medium‑duty M6 for machinery and furniture.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMultiple length options available\u003c\/strong\u003e – See table below for specific size\/length combinations. Fully threaded for maximum grip.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFully threaded, coarse metric pitch\u003c\/strong\u003e – Standard threads per size. Threads run the entire length for reliable engagement with nuts or tapped holes.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWide application range\u003c\/strong\u003e – Electronics, appliances, furniture, marine hardware, automotive trim, and general DIY.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003c!-- Specifications Table (Available Sizes) --\u003e\n  \u003ch2\u003e📏 Available Sizes – Slotted Countersunk Screws (A2 Stainless)\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrapper\"\u003e\n    \u003ctable class=\"hdiy-specs-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eThread Pitch (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eM1.2\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\u003ctd\u003e4\u003c\/td\u003e\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eM1.6\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003eM2\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\u003ctd\u003e4\u003c\/td\u003e\u003c\/tr\u003e\n        \u003ctr\u003e\u003ctd\u003e8\u003c\/td\u003e\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eM5\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\u003ctd\u003e25\u003c\/td\u003e\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eM6\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\u003ctd\u003e25\u003c\/td\u003e\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003cem\u003eNote: Length is measured as total screw length including head (standard for countersunk screws). All screws are fully threaded. A2 stainless steel provides good corrosion resistance.\u003c\/em\u003e\u003c\/p\u003e\n  \n  \u003c!-- General Specifications Table --\u003e\n  \u003cdiv class=\"hdiy-table-wrapper\"\u003e\n    \u003ctable class=\"hdiy-specs-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eSlotted Countersunk Flat Head Machine Screws\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eA2 Stainless Steel (304 \/ 18-8)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003eSlotted (flathead \/ single slot)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eCountersunk (90°)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSystem of Measurement\u003c\/th\u003e\n\u003ctd\u003eMetric\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eCoarse, fully threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLength Measurement\u003c\/th\u003e\n\u003ctd\u003eLength includes head (total screw length)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \n  \u003c!-- Frequently Asked Questions --\u003e\n  \u003ch2\u003e❓ FAQs – Slotted Countersunk Stainless Screws\u003c\/h2\u003e\n  \n  \u003cdiv class=\"hdiy-faq-item\"\u003e\n    \u003cdiv class=\"hdiy-faq-question\"\u003e🔸 What screwdriver should I use for these slotted screws?\u003c\/div\u003e\n    \u003cdiv class=\"hdiy-faq-answer\"\u003eUse a standard flathead (slotted) screwdriver that matches the slot width. For M1.2–M2, a 1.5–2mm blade works. For M4–M6, a 3–4mm blade is ideal. Avoid using a driver that is too wide or too narrow – it will damage the slot.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"hdiy-faq-item\"\u003e\n    \u003cdiv class=\"hdiy-faq-question\"\u003e🔸 How is length measured for countersunk screws?\u003c\/div\u003e\n    \u003cdiv class=\"hdiy-faq-answer\"\u003eFor countersunk screws, length is measured as total screw length including the head – from the top of the flat head to the tip. For example, an M4 x 16mm screw is 16mm long overall. This matches standard fastener measurement.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"hdiy-faq-item\"\u003e\n    \u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Are these screws fully threaded? What pitches do they have?\u003c\/div\u003e\n    \u003cdiv class=\"hdiy-faq-answer\"\u003eYes – all screws are fully threaded. Pitches: M1.2x0.25, M1.6x0.35, M2x0.4, M4x0.7, M5x0.8, M6x1.0 (standard metric coarse).\u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"hdiy-faq-item\"\u003e\n    \u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Will A2 stainless steel rust in outdoor or coastal environments?\u003c\/div\u003e\n    \u003cdiv class=\"hdiy-faq-answer\"\u003eA2 (304) stainless is highly resistant to moisture, rain, and humidity – perfect for most outdoor use. For direct saltwater immersion or heavy coastal spray, A4 (316) stainless is better, but for general outdoor furniture, appliances, and marine above‑waterline use, 304 lasts for years without rust.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"hdiy-faq-item\"\u003e\n    \u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Can I use these screws with nuts, or are they self‑tapping?\u003c\/div\u003e\n    \u003cdiv class=\"hdiy-faq-answer\"\u003eThese are standard machine screws – they require a matching metric nut (M1.2–M6) or a pre‑tapped hole. They are not self‑tapping. For best corrosion resistance, pair them with A2 stainless nuts.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"hdiy-faq-item\"\u003e\n    \u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Do you offer other lengths not listed in the table?\u003c\/div\u003e\n    \u003cdiv class=\"hdiy-faq-answer\"\u003eWe offer the specific size\/length combinations shown in the table. If you need a different length or size not listed, please contact us – we may be able to source it or recommend an alternative.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M1.2*3mm \/ 100","offer_id":52284739748114,"sku":"GYWXWJLWJ03532x1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"M1.2*4mm \/ 100","offer_id":52284739780882,"sku":"GYWXWJLWJ03533x1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"M1.6*3mm \/ 100","offer_id":52284739813650,"sku":"GYWXWJLWJ03534x1","price":3.47,"currency_code":"USD","in_stock":true},{"title":"M2*3mm \/ 100","offer_id":52284739846418,"sku":"GYWXWJLWJ03535x1","price":3.47,"currency_code":"USD","in_stock":true},{"title":"M2*4mm \/ 100","offer_id":52284739879186,"sku":"GYWXWJLWJ03536x1","price":3.6,"currency_code":"USD","in_stock":true},{"title":"M2*8mm \/ 100","offer_id":52284739911954,"sku":"GYWXWJLWJ03537x1","price":4.07,"currency_code":"USD","in_stock":true},{"title":"M4*16mm \/ 100","offer_id":52284739944722,"sku":"GYWXWJLWJ03538x1","price":10.87,"currency_code":"USD","in_stock":true},{"title":"M5*16mm \/ 100","offer_id":52284739977490,"sku":"GYWXWJLWJ03539x1","price":14.62,"currency_code":"USD","in_stock":true},{"title":"M5*25mm \/ 100","offer_id":52284740010258,"sku":"GYWXWJLWJ03540x1","price":18.62,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 100","offer_id":52284740043026,"sku":"GYWXWJLWJ03541x1","price":22.56,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 100","offer_id":52284740075794,"sku":"GYWXWJLWJ03542x1","price":26.1,"currency_code":"USD","in_stock":true},{"title":"M1.2*3mm \/ 200","offer_id":52284740108562,"sku":"GYWXWJLWJ03532x2","price":4.47,"currency_code":"USD","in_stock":true},{"title":"M1.2*4mm \/ 200","offer_id":52284740141330,"sku":"GYWXWJLWJ03533x2","price":4.47,"currency_code":"USD","in_stock":true},{"title":"M1.6*3mm \/ 200","offer_id":52284740174098,"sku":"GYWXWJLWJ03534x2","price":5.92,"currency_code":"USD","in_stock":true},{"title":"M2*3mm \/ 200","offer_id":52284740206866,"sku":"GYWXWJLWJ03535x2","price":6.05,"currency_code":"USD","in_stock":true},{"title":"M2*4mm \/ 200","offer_id":52284740239634,"sku":"GYWXWJLWJ03536x2","price":6.51,"currency_code":"USD","in_stock":true},{"title":"M2*8mm \/ 200","offer_id":52284740272402,"sku":"GYWXWJLWJ03537x2","price":7.47,"currency_code":"USD","in_stock":true},{"title":"M4*16mm \/ 200","offer_id":52284740305170,"sku":"GYWXWJLWJ03538x2","price":21.07,"currency_code":"USD","in_stock":true},{"title":"M5*16mm \/ 200","offer_id":52284740337938,"sku":"GYWXWJLWJ03539x2","price":28.49,"currency_code":"USD","in_stock":true},{"title":"M5*25mm \/ 200","offer_id":52284740370706,"sku":"GYWXWJLWJ03540x2","price":36.52,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 200","offer_id":52284740403474,"sku":"GYWXWJLWJ03541x2","price":44.4,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 200","offer_id":52284740436242,"sku":"GYWXWJLWJ03542x2","price":51.53,"currency_code":"USD","in_stock":true},{"title":"M1.2*3mm \/ 500","offer_id":52284740469010,"sku":"GYWXWJLWJ03532x5","price":10.0,"currency_code":"USD","in_stock":true},{"title":"M1.2*4mm \/ 500","offer_id":52284740501778,"sku":"GYWXWJLWJ03533x5","price":10.13,"currency_code":"USD","in_stock":true},{"title":"M1.6*3mm \/ 500","offer_id":52284740534546,"sku":"GYWXWJLWJ03534x5","price":13.8,"currency_code":"USD","in_stock":true},{"title":"M2*3mm \/ 500","offer_id":52284740567314,"sku":"GYWXWJLWJ03535x5","price":14.13,"currency_code":"USD","in_stock":true},{"title":"M2*4mm \/ 500","offer_id":52284740600082,"sku":"GYWXWJLWJ03536x5","price":15.3,"currency_code":"USD","in_stock":true},{"title":"M2*8mm \/ 500","offer_id":52284740632850,"sku":"GYWXWJLWJ03537x5","price":17.53,"currency_code":"USD","in_stock":true},{"title":"M4*16mm \/ 500","offer_id":52284740665618,"sku":"GYWXWJLWJ03538x5","price":51.67,"currency_code":"USD","in_stock":true},{"title":"M5*16mm \/ 500","offer_id":52284740698386,"sku":"GYWXWJLWJ03539x5","price":70.16,"currency_code":"USD","in_stock":true},{"title":"M5*25mm \/ 500","offer_id":52284740731154,"sku":"GYWXWJLWJ03540x5","price":90.29,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 500","offer_id":52284740763922,"sku":"GYWXWJLWJ03541x5","price":109.87,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 500","offer_id":52284740796690,"sku":"GYWXWJLWJ03542x5","price":127.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of6_2f822891-2255-41cd-a847-b37875017b8b.jpg?v=1779351318","url":"https:\/\/homediyer.com\/products\/slotted-countersunk-screws-m1-2-m6-a2-stainless","provider":"HomeDIYer","version":"1.0","type":"link"}