{"product_id":"400pc-410-stainless-hex-tek-screws-8-10-12","title":"400pc #8 #10 #12 Hex Washer Self-Drilling Tek Screws – 410 Stainless Steel Kit","description":"\u003cdiv class=\"hdiy-product-detail\"\u003e\n\u003c!-- Product Overview --\u003e\n\u003cdiv class=\"hdiy-section\"\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e🔩 400-Piece Hex Washer Head Self-Drilling Screw Kit – 410 Stainless Steel (#8, #10, #12)\u003c\/h2\u003e\n\u003cp class=\"hdiy-text\"\u003eGet through metal roofing, steel studs, and sheet metal fast with this 400-piece hex washer head self-drilling screw assortment from GooBetter. Each screw features a hardened drill-bit tip that bores its own pilot hole and taps tight threads in one shot — no separate drill bit, no pre-drilling required through thin gauge steel and wood. The wide hex washer head delivers a generous bearing surface to prevent pull-through and lets you apply high torque with a standard socket, so you can drive them hard without cam-out. Manufactured from 410 stainless steel, these screws offer higher hardness and strength than standard 304, with solid atmospheric corrosion resistance for indoor, outdoor, and mild industrial environments. The kit includes all three critical Imperial diameters — #8, #10, and #12 — in the most-used lengths from 1\/2″ to 2″, packed in a sturdy compartmented storage box so you can grab the exact size without digging through loose hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Key Features – vertical list for SEO --\u003e\n\u003cdiv class=\"hdiy-section\"\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e⚙️ Key Features – 410 Stainless Hex Washer Self-Drilling Screws\u003c\/h2\u003e\n\u003cul class=\"hdiy-feature-list\"\u003e\n\u003cli\u003eSelf-drilling tip eliminates the need for a pilot hole — one-step fastening through sheet metal up to 2 mm, wood, and plastic\u003c\/li\u003e\n\u003cli\u003e410 stainless steel provides higher strength and hardness than 304, with good atmospheric corrosion resistance indoors and outdoors\u003c\/li\u003e\n\u003cli\u003eHex washer head with external socket drive allows high-torque fastening — virtually no cam-out or stripping\u003c\/li\u003e\n\u003cli\u003e400-piece kit covers #8, #10, and #12 diameters in 1\/2″, 5\/8″, 3\/4″, 1″, 1-1\/2″, and 2″ lengths — organized and ready to use\u003c\/li\u003e\n\u003cli\u003eSilver natural finish — no plating to wear off, corrosion protection is built into the metal\u003c\/li\u003e\n\u003cli\u003eSupplied in a practical, reusable plastic storage box with divided compartments for each size\u003c\/li\u003e\n\u003cli\u003eIdeal for metal roofing, HVAC ductwork, steel framing, auto panels, wood-to-metal connections, and general construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Specifications Table – exact kit contents --\u003e\n\u003cdiv class=\"hdiy-section\"\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e📋 Technical Specifications – Hex Washer Self-Drilling Tek Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrapper\"\u003e\n\u003ctable class=\"hdiy-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eDiameter (Approx.)\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003cth\u003eDrive\u003c\/th\u003e\n\u003cth\u003eMaterial \u0026amp; Finish\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e#8 × 1\/2″\u003c\/td\u003e\n\u003ctd\u003e#8 (~4.2 mm)\u003c\/td\u003e\n\u003ctd\u003e1\/2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#8 × 3\/4″\u003c\/td\u003e\n\u003ctd\u003e#8 (~4.2 mm)\u003c\/td\u003e\n\u003ctd\u003e3\/4″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#8 × 1″\u003c\/td\u003e\n\u003ctd\u003e#8 (~4.2 mm)\u003c\/td\u003e\n\u003ctd\u003e1″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#10 × 1\/2″\u003c\/td\u003e\n\u003ctd\u003e#10 (~4.8 mm)\u003c\/td\u003e\n\u003ctd\u003e1\/2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#10 × 3\/4″\u003c\/td\u003e\n\u003ctd\u003e#10 (~4.8 mm)\u003c\/td\u003e\n\u003ctd\u003e3\/4″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#10 × 1″\u003c\/td\u003e\n\u003ctd\u003e#10 (~4.8 mm)\u003c\/td\u003e\n\u003ctd\u003e1″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#12 × 3\/4″\u003c\/td\u003e\n\u003ctd\u003e#12 (~5.5 mm)\u003c\/td\u003e\n\u003ctd\u003e3\/4″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#12 × 1-1\/2″\u003c\/td\u003e\n\u003ctd\u003e#12 (~5.5 mm)\u003c\/td\u003e\n\u003ctd\u003e1-1\/2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#12 × 2″\u003c\/td\u003e\n\u003ctd\u003e#12 (~5.5 mm)\u003c\/td\u003e\n\u003ctd\u003e2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex Socket\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel, Natural\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"hdiy-note\"\u003eTotal: 400 pieces. All screws are supplied in a compartmented storage box. Imperial sizing: lengths measured from under the head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FAQ – fully expanded, no accordion --\u003e\n\u003cdiv class=\"hdiy-section\"\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e❓ Frequently Asked Questions – 410 Stainless Self-Drilling Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 Do I really need to pre-drill a hole?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003eNo. The self-drilling tip will penetrate sheet metal up to about 2 mm thick and wood composites without a pilot hole. For thicker materials, a small pilot hole can assist, but in standard roofing, siding, and framing applications, these are true one-step fasteners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 How does 410 stainless compare to 304 stainless?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003e410 stainless is harder and offers higher strength than 304. It provides good atmospheric corrosion resistance for indoor and mild outdoor use. It is also magnetic. For constant saltwater or harsh chemical exposure, 304 or 316 would be preferable, but for roofing, framing, automotive, and general construction, 410 holds up very well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 What size socket do I need?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003eMost #8 and #10 Tek screws use a 5\/16″ (8 mm) hex socket. #12 screws may use 5\/16″ or 3\/8″ depending on the exact head size. A magnetic nut driver bit in both sizes will cover the entire kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 Can these be used for wood-to-metal connections?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003eYes. The self-drilling tip punches through the metal layer, and the thread bites firmly into the wood substrate beneath. They are widely used for fastening metal roofing to timber purlins and for mixed-material structural connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Styles – .hdiy- prefix prevents theme conflicts --\u003e\n\u003cstyle\u003e\n  .hdiy-product-detail, .hdiy-product-detail * {\n    box-sizing: border-box;\n    margin: 0;\n    padding: 0;\n  }\n  .hdiy-product-detail {\n    width: 100%;\n    max-width: 100%;\n    color: #1a1a1a;\n    line-height: 1.5;\n    word-wrap: break-word;\n    overflow-wrap: break-word;\n    background: #fff;\n    padding: 0 0 20px 0;\n  }\n  .hdiy-section {\n    margin-bottom: 28px;\n  }\n  .hdiy-heading {\n    font-size: 1.35em;\n    font-weight: 600;\n    line-height: 1.3;\n    margin-bottom: 14px;\n    color: #222;\n    border-bottom: 2px solid #e0e0e0;\n    padding-bottom: 8px;\n  }\n  .hdiy-text {\n    font-size: 0.95em;\n    margin-bottom: 12px;\n    color: #333;\n  }\n  .hdiy-feature-list {\n    list-style: none;\n    padding-left: 0;\n    margin: 0;\n  }\n  .hdiy-feature-list li {\n    position: relative;\n    padding-left: 24px;\n    margin-bottom: 10px;\n    font-size: 0.95em;\n    color: #2d2d2d;\n  }\n  .hdiy-feature-list li::before {\n    content: \"▪\";\n    position: absolute;\n    left: 0;\n    color: #b8860b;\n    font-weight: bold;\n  }\n  .hdiy-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n    margin-bottom: 6px;\n    border: 1px solid #ddd;\n    border-radius: 4px;\n  }\n  .hdiy-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 650px;\n    font-size: 0.9em;\n    background: #fff;\n  }\n  .hdiy-table th,\n  .hdiy-table td {\n    border: 1px solid #ddd;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: top;\n  }\n  .hdiy-table thead th {\n    background-color: #f5f5f5;\n    font-weight: 600;\n    color: #222;\n  }\n  .hdiy-table tbody tr:nth-child(even) {\n    background-color: #fafafa;\n  }\n  .hdiy-note {\n    font-size: 0.85em;\n    color: #666;\n    margin-top: 6px;\n  }\n  .hdiy-faq-item {\n    margin-bottom: 22px;\n  }\n  .hdiy-faq-question {\n    font-size: 1.0em;\n    font-weight: 600;\n    margin-bottom: 6px;\n    color: #1a1a1a;\n  }\n  .hdiy-faq-answer {\n    font-size: 0.9em;\n    color: #444;\n    margin-left: 0;\n    padding-left: 12px;\n    border-left: 3px solid #ccc;\n  }\n  @media screen and (max-width: 600px) {\n    .hdiy-heading {\n      font-size: 1.2em;\n    }\n    .hdiy-table th,\n    .hdiy-table td {\n      padding: 8px 6px;\n      font-size: 0.82em;\n    }\n    .hdiy-feature-list li {\n      font-size: 0.9em;\n    }\n    .hdiy-faq-question {\n      font-size: 0.95em;\n    }\n    .hdiy-faq-answer {\n      font-size: 0.85em;\n    }\n  }\n\u003c\/style\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52248354029842,"sku":"GBTST0008","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-01_4bd7a6d1-c4a3-47d9-8c94-c50c82e8d58a.jpg?v=1778463880","url":"https:\/\/homediyer.com\/de\/products\/400pc-410-stainless-hex-tek-screws-8-10-12","provider":"HomeDIYer","version":"1.0","type":"link"}