{"product_id":"hex-washer-self-drilling-tek-screws-410-stainless","title":"400PCS Hex Washer Head Self Drilling Tek Screws – 410 Stainless Steel, #8 #10 #12","description":"\u003cdiv class=\"hdiy-product-detail\"\u003e\n\u003c!-- Product Overview --\u003e\n\u003cdiv class=\"hdiy-section\"\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e🔩 Hex Washer Head Self Drilling Tek Screws – 410 Stainless Steel (#8 #10 #12)\u003c\/h2\u003e\n\u003cp class=\"hdiy-text\"\u003eGet through metal roofing, steel studs, and sheet metal faster with this 400‑piece hex washer head self-drilling screw assortment. Each screw has a hardened drill‑bit tip that bores its own pilot hole, eliminates the need for a separate bit, and taps tight threads as it drives — true one‑step fastening. The hex washer head delivers a wide, load‑spreading bearing surface and lets you apply high torque with a standard socket or nut driver, so cam‑out is virtually nonexistent. Made from 410 stainless steel, these screws offer higher strength and hardness than 304, along with good atmospheric corrosion resistance — magnetic, durable, and built for HVAC ductwork, steel framing, auto panels, and outdoor wood construction. The kit covers three Imperial diameters (#8, #10, #12) and six popular lengths from 1\/2″ to 2″, giving you the right fastener within arm’s reach for both quick repairs and large builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Key Features – vertical list, SEO friendly --\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 removes the need for a pilot hole — the screw cuts its own path through steel studs, sheet metal, and wood\u003c\/li\u003e\n\u003cli\u003eThe hex washer head acts as an integrated washer to spread clamp load and stop pull‑through in thin materials\u003c\/li\u003e\n\u003cli\u003e410 stainless steel provides higher strength and hardness than 304, with solid atmospheric corrosion resistance indoors and outdoors\u003c\/li\u003e\n\u003cli\u003eExternal hex drive allows high‑torque fastening with a standard socket — virtually no cam‑out or stripping\u003c\/li\u003e\n\u003cli\u003eImperial sizing: #8, #10, and #12 diameters with lengths from 1\/2″ to 2″ — the most requested Tek screw range\u003c\/li\u003e\n\u003cli\u003e400‑piece kit with organized quantities of each common size so you can grab and go\u003c\/li\u003e\n\u003cli\u003eIdeal for metal roofing, HVAC ducts, steel framing, auto body, wood sheds, and general construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Specifications Table --\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\u003eAvailable Lengths\u003c\/th\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003cth\u003eDrive\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eQty in Kit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e#8\u003c\/td\u003e\n\u003ctd\u003e~4.2 mm\u003c\/td\u003e\n\u003ctd\u003e1\/2″, 5\/8″, 3\/4″, 1″, 1-1\/2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex (5\/16″ or 3\/8″)\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#10\u003c\/td\u003e\n\u003ctd\u003e~4.8 mm\u003c\/td\u003e\n\u003ctd\u003e1\/2″, 5\/8″, 3\/4″, 1″, 1-1\/2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex (5\/16″ or 3\/8″)\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#12\u003c\/td\u003e\n\u003ctd\u003e~5.5 mm\u003c\/td\u003e\n\u003ctd\u003e3\/4″, 1″, 1-1\/2″, 2″\u003c\/td\u003e\n\u003ctd\u003eHex Washer Head\u003c\/td\u003e\n\u003ctd\u003eExternal Hex (5\/16″ or 3\/8″)\u003c\/td\u003e\n\u003ctd\u003e410 Stainless Steel\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"hdiy-note\"\u003eThis 400‑piece kit includes: #8x1-1\/2″ (80), #8x3\/4″ (80), #8x1″ (60), #10-1\/2″ (60), #10x3\/4″ (40), #10x1″ (30), #12x3\/4″ (25), #12x1-1\/2″ (15), #12x2″ (10). Quantity per size listed reflects pack contents.\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 – Hex Washer Tek Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 Do I really not need a pilot hole with these?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003eThat's correct. The drill‑shaped tip will punch through sheet metal up to about 2 mm thick and into wood without pre‑drilling. For thicker steel or very hard materials, a small pilot hole can reduce drive torque, but in most common 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 or zinc‑plated steel?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003e410 stainless is harder and stronger than 304, offering good atmospheric corrosion resistance. It's magnetic and ideal for indoor and mild outdoor use. For constant saltwater exposure, 316 would be preferable, but for roofing, HVAC, and general construction, 410 holds up exceptionally well at a lower cost.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 What size socket driver 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, while #12 may use 5\/16″ or 3\/8″, depending on the exact head. A magnetic nut driver bit in 5\/16″ and 3\/8″ 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 I use these for wood‑to‑metal connections?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003eAbsolutely. The self‑drilling tip bites through the metal layer and threads tightly into the wood substrate beneath. They're widely used for fastening metal roofing to timber purlins, attaching brackets to wood studs, and similar mixed‑material assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003ch3 class=\"hdiy-faq-question\"\u003e🔸 Are these screws magnetic?\u003c\/h3\u003e\n\u003cp class=\"hdiy-faq-answer\"\u003eYes, 410 stainless is magnetic, unlike 304 or 316. This can help retrieve dropped screws with a magnet, but they may not be suitable for extremely sensitive electronic applications where magnetism must be completely avoided.\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: 600px;\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":52248216731922,"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_2ee68eaf-5985-4995-92f0-6cee6b0ea126.jpg?v=1778219169","url":"https:\/\/homediyer.com\/de\/products\/hex-washer-self-drilling-tek-screws-410-stainless","provider":"HomeDIYer","version":"1.0","type":"link"}