{"product_id":"304-stainless-steel-hex-socket-button-head-screws-m3-m4-m5","title":"304 Stainless Steel Hex Socket Button Head Screws, 10Pcs – M3 M4 M5, 6–20mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e304 Stainless Steel Hex Socket Button Head Screws — Precision Fastening for Every Project\u003c\/h2\u003e\n    \u003cp\u003eWhether you're assembling furniture, maintaining machinery, or tackling outdoor builds, loose or rusted fasteners can derail your entire project. These 304 stainless steel hex socket button head screws are engineered for DIYers, hobbyists, and professionals who demand reliable, corrosion-resistant fastening in any environment.\u003c\/p\u003e\n    \u003cp\u003eEach pack contains 10 precision-machined screws available in M3, M4, and M5 thread diameters with lengths ranging from 6 mm to 20 mm (approximately 0.24″ to 0.79″). The smooth, low-profile button head and hex socket (Allen key) drive deliver a clean, flush finish without sacrificing torque or holding strength.\u003c\/p\u003e\n    \u003cp\u003eIdeal for electronics enclosures, automotive trim panels, marine hardware, and workshop equipment, these stainless steel button head bolts handle moisture, vibration, and temperature extremes that would corrode or strip ordinary zinc-plated fasteners.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e✅\u003c\/span\u003e\n    Compatible with M3, M4, and M5 threaded holes — suitable for metal, wood, and plastic substrates in indoor and outdoor applications\n  \u003c\/div\u003e\n\n  \u003cdiv\u003e\n    \u003ch2\u003e✅ Key Features of These Stainless Steel Hex Socket Button Head Screws\u003c\/h2\u003e\n    \u003cul class=\"hdiy-features\"\u003e\n      \u003cli\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n        \u003cspan\u003e\u003cstrong\u003e304 Stainless Steel Construction:\u003c\/strong\u003e High-grade 304 alloy delivers superior corrosion resistance, tensile strength, and long-term durability — outperforming standard carbon steel or zinc-plated alternatives in humid or outdoor conditions.\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n        \u003cspan\u003e\u003cstrong\u003eHex Socket (Allen Key) Drive:\u003c\/strong\u003e The internal hex socket provides excellent torque transfer and reduces cam-out risk, allowing precise tightening even in confined spaces where a standard screwdriver cannot reach.\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cspan\u003e\u003cstrong\u003eLow-Profile Button Head Design:\u003c\/strong\u003e The smooth, rounded button head sits flush against the surface for a clean, professional finish — ideal for visible assemblies in furniture, electronics, and decorative hardware.\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n        \u003cspan\u003e\u003cstrong\u003e18 Size Options (M3–M5, 6–20 mm):\u003c\/strong\u003e Choose from M3×6 mm through M5×20 mm to match your exact fastening requirement — no need to buy oversized assortment kits when you know the spec you need.\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n        \u003cspan\u003e\u003cstrong\u003eVibration-Resistant Precision Threading:\u003c\/strong\u003e Full-thread engagement and tight manufacturing tolerances ensure a secure, vibration-resistant hold in high-stress environments such as automotive, marine, and industrial machinery.\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\n        \u003cspan\u003e\u003cstrong\u003eBroad Application Compatibility:\u003c\/strong\u003e Suitable for automotive trim, electronics enclosures, marine hardware, workshop jigs, furniture assembly, and general DIY repairs — wherever a clean, strong, corrosion-resistant fastener is required.\u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-usecases\"\u003e\n    \u003ch2\u003e🎯 Who Is This For?\u003c\/h2\u003e\n    \u003cdiv class=\"hdiy-usecase-item\"\u003e\n      \u003cspan\u003e🔨\u003c\/span\u003e\n      \u003cstrong\u003eDIY Homeowners \u0026amp; Makers\u003c\/strong\u003e\n      \u003cp\u003ePerfect for furniture assembly, shelving brackets, and home workshop projects where a flush, rust-free finish matters.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hdiy-usecase-item\"\u003e\n      \u003cspan\u003e🚗\u003c\/span\u003e\n      \u003cstrong\u003eAutomotive Enthusiasts\u003c\/strong\u003e\n      \u003cp\u003eUse these button head bolts for interior trim panels, underbody covers, and engine bay accessories that need vibration resistance and a clean look.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hdiy-usecase-item\"\u003e\n      \u003cspan\u003e⚙️\u003c\/span\u003e\n      \u003cstrong\u003eEngineers \u0026amp; Technicians\u003c\/strong\u003e\n      \u003cp\u003eIdeal for electronics enclosures, CNC machine guards, and precision equipment where exact thread sizing and corrosion resistance are non-negotiable.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hdiy-usecase-item\"\u003e\n      \u003cspan\u003e⛵\u003c\/span\u003e\n      \u003cstrong\u003eMarine \u0026amp; Outdoor Builders\u003c\/strong\u003e\n      \u003cp\u003e304 stainless steel withstands salt spray and moisture, making these screws a reliable choice for boat fittings, outdoor furniture, and garden structures.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📋 Technical Specifications\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eButton Head (Low Profile, Rounded)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003eHex Socket (Allen Key \/ Internal Hex)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Diameter\u003c\/th\u003e\n\u003ctd\u003eM3, M4, M5\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eMetric, Full Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Pack\u003c\/th\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural Stainless (Brushed)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWeight (per pack)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplicable Standards\u003c\/th\u003e\n\u003ctd\u003eISO 7380 (Button Head Hex Socket Screw)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRecommended Tool\u003c\/th\u003e\n\u003ctd\u003eHex Key \/ Allen Wrench (size varies by thread diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSuitable Substrates\u003c\/th\u003e\n\u003ctd\u003eMetal, Wood, Plastic, Composite\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between a button head screw and a cap head screw?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA button head screw has a wider, lower-profile dome-shaped head that sits closer to the surface, providing a cleaner aesthetic. A cap head (socket head cap screw) has a taller cylindrical head that allows higher torque. Button heads are preferred where appearance matters or clearance is limited.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat Allen key size do I need for M3, M4, and M5 button head screws?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eTypically, M3 button head screws use a 2 mm hex key, M4 uses a 2.5 mm hex key, and M5 uses a 3 mm hex key. Always verify with the specific screw before applying full torque.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these screws suitable for outdoor or marine use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. 304 stainless steel offers good corrosion resistance in most outdoor and mildly marine environments. For highly aggressive saltwater exposure, 316 stainless steel is generally recommended, but 304 performs well in most coastal and outdoor DIY applications.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these screws in aluminum or plastic?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. These screws are compatible with aluminum, plastic, wood, and steel substrates. When threading into soft materials like plastic, apply moderate torque to avoid stripping the receiving thread.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eDo these screws come with nuts or washers?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eEach pack contains 10 screws only. Nuts and washers are not included. If you need matching stainless steel nuts or washers, please check our other listings or contact us.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the thread pitch for M3, M4, and M5 screws?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eStandard metric coarse thread pitches are typically 0.5 mm for M3, 0.7 mm for M4, and 0.8 mm for M5. These screws follow standard ISO metric coarse thread specifications.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right screw length?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAs a general rule, the engaged thread length should be at least 1.5× the screw diameter for metal-to-metal joints, and 2–3× for softer materials like wood or plastic. For example, an M4 screw threading into aluminum should engage at least 6 mm of thread.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size above, then add to cart.\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M3*6mm","offer_id":51166937841938,"sku":"US-KC00001","price":4.0,"currency_code":"USD","in_stock":true},{"title":"M3*8mm","offer_id":51166937874706,"sku":"US-KC00002","price":4.36,"currency_code":"USD","in_stock":true},{"title":"M3*10mm","offer_id":51166937907474,"sku":"US-KC00003","price":4.91,"currency_code":"USD","in_stock":true},{"title":"M3*12mm","offer_id":51166937940242,"sku":"US-KC00004","price":5.47,"currency_code":"USD","in_stock":true},{"title":"M3*16mm","offer_id":51166937973010,"sku":"US-KC00005","price":6.43,"currency_code":"USD","in_stock":true},{"title":"M3*20mm","offer_id":51166938005778,"sku":"US-KC00006","price":7.56,"currency_code":"USD","in_stock":true},{"title":"M4*6mm","offer_id":51166938038546,"sku":"US-KC00007","price":6.79,"currency_code":"USD","in_stock":true},{"title":"M4*8mm","offer_id":51166938071314,"sku":"US-KC00008","price":7.62,"currency_code":"USD","in_stock":true},{"title":"M4*10mm","offer_id":51166938104082,"sku":"US-KC00009","price":8.33,"currency_code":"USD","in_stock":true},{"title":"M4*12mm","offer_id":51166938136850,"sku":"US-KC00010","price":9.71,"currency_code":"USD","in_stock":true},{"title":"M4*16mm","offer_id":51166938169618,"sku":"US-KC00011","price":11.16,"currency_code":"USD","in_stock":true},{"title":"M4*20mm","offer_id":51166938202386,"sku":"US-KC00012","price":13.4,"currency_code":"USD","in_stock":true},{"title":"M5*6mm","offer_id":51166938235154,"sku":"US-KC00013","price":11.34,"currency_code":"USD","in_stock":true},{"title":"M5*8mm","offer_id":51166938267922,"sku":"US-KC00014","price":12.04,"currency_code":"USD","in_stock":true},{"title":"M5*10mm","offer_id":51166938300690,"sku":"US-KC00015","price":13.4,"currency_code":"USD","in_stock":true},{"title":"M5*12mm","offer_id":51166938333458,"sku":"US-KC00016","price":15.18,"currency_code":"USD","in_stock":true},{"title":"M5*16mm","offer_id":51166938366226,"sku":"US-KC00017","price":18.03,"currency_code":"USD","in_stock":true},{"title":"M5*20mm","offer_id":51166938398994,"sku":"US-KC00018","price":20.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-02_dd4cc329-2316-4254-bf43-9b005f14f1c7.jpg?v=1762199915","url":"https:\/\/homediyer.com\/products\/304-stainless-steel-hex-socket-button-head-screws-m3-m4-m5","provider":"HomeDIYer","version":"1.0","type":"link"}