{"product_id":"large-flat-head-machine-screws-m2-m6-allen-torx-slotted","title":"Large Flat Head Machine Screws M2–M6 Allen Torx Slotted Multi-Drive 100pcs","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eLarge Flat Head Machine Screws M2–M6 — Multi-Drive, Multi-Finish for Every Assembly Need\u003c\/h2\u003e\n\u003cp\u003eStandard screw heads pull through thin panels, strip soft materials, and leave ugly protrusions on finished surfaces. Engineers, electronics assemblers, furniture makers, and precision DIYers who need a fastener that spreads load, stays put, and looks intentional turn to \u003cstrong\u003elarge flat head machine screws\u003c\/strong\u003e — available here in Allen, Torx, Slotted, and Groove-Free drive types across seven material finishes.\u003c\/p\u003e\n\u003cp\u003eEach pack contains \u003cstrong\u003e100 pieces\u003c\/strong\u003e of the selected size and finish combination. Diameters range from \u003cstrong\u003eM2\u003c\/strong\u003e to \u003cstrong\u003eM6\u003c\/strong\u003e, with lengths from \u003cstrong\u003e3mm (≈1\/8\")\u003c\/strong\u003e to \u003cstrong\u003e50mm (≈2\")\u003c\/strong\u003e. Material options include Carbon Steel with Black Zinc (with or without pre-applied thread-locking glue), Bright Nickel, Black Nickel, White Zinc, Electrophoresis Black, and Stainless Steel — covering both functional and decorative requirements.\u003c\/p\u003e\n\u003cp\u003eTypical applications include electronics enclosure assembly using \u003cstrong\u003esmall flat head Torx machine screws\u003c\/strong\u003e, automotive interior panel fastening with \u003cstrong\u003elarge head screws with pre-applied thread locker\u003c\/strong\u003e, and precision fixture building where \u003cstrong\u003emetric flat head Allen screws M3–M6\u003c\/strong\u003e provide controlled torque and a clean surface finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔵\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e ISO metric coarse thread — M2 through M6. Fits any matching metric nut, threaded insert, or tapped hole per ISO 68-1. Drive types: Allen (hex key), Torx (star bit), Slotted (flat blade), Groove-Free (no drive). All packs: 100 pieces.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eNote:\u003c\/strong\u003e Carbon steel variants are not recommended for outdoor or marine environments without additional protection. Select Stainless Steel for corrosive or humid conditions. “With Glue” variants include pre-applied thread-locking adhesive — confirm compatibility with your assembly before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Large Flat Head Machine Screws M2–M6\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOversized Flat Head for Load Distribution\u003c\/strong\u003e — The enlarged head diameter spreads clamping force over a wider surface area, preventing pull-through in thin panels, plastic enclosures, and sheet metal — a common failure point with standard-head screws.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFour Drive Types in One Listing\u003c\/strong\u003e — Choose Allen (hex socket), Torx (star), Slotted (flat blade), or Groove-Free to match your tooling and application — from precision electronics assembly to tamper-resistant panel mounting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSeven Material \u0026amp; Finish Options\u003c\/strong\u003e — Stainless Steel for corrosion resistance, Black\/White Zinc for indoor protection, Bright\/Black Nickel for decorative finishes, Electrophoresis Black for uniform matte coating, and Black Zinc With Glue for vibration-resistant assemblies.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧲\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePre-Applied Thread Locker (Select Variants)\u003c\/strong\u003e — “Black Zinc With Glue” variants include a factory-applied thread-locking adhesive patch, eliminating the need for separate Loctite application in vibration-prone assemblies such as motor mounts and machinery panels.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Size Range — M2 to M6, 3mm to 50mm\u003c\/strong\u003e — Covers the most common small metric machine screw sizes used in electronics, automotive, and precision mechanical assembly, reducing the need to source from multiple suppliers.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e100-Piece Packs for Workshop Efficiency\u003c\/strong\u003e — Each pack contains 100 pieces of the selected size and finish, suitable for production runs, maintenance kits, and workshop stock without over-ordering individual fasteners.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Large Flat Head Machine Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Type\u003c\/th\u003e\n\u003ctd\u003eLarge flat head (oversized pan head)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Types Available\u003c\/th\u003e\n\u003ctd\u003eAllen (hex socket) | Torx (star) | Slotted (flat blade) | Groove-Free (no drive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eISO metric coarse thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Diameters\u003c\/th\u003e\n\u003ctd\u003eM2, M2.5, M3, M4, M5, M6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e3mm (≈1\/8\") — 50mm (≈2\") (varies by diameter — see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial Options\u003c\/th\u003e\n\u003ctd\u003eCarbon Steel \/ Black Zinc With Glue | Carbon Steel \/ Black Zinc | Carbon Steel \/ Bright Nickel | Carbon Steel \/ Black Nickel | Carbon Steel \/ White Zinc | Carbon Steel \/ Electrophoresis Black | Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Locker\u003c\/th\u003e\n\u003ctd\u003ePre-applied on “With Glue” variants; none on standard variants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e100 pieces per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Diameter\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm per diameter (oversized vs. standard head)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm per diameter (ISO metric coarse standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right diameter and length for large flat head machine screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the diameter to your tapped hole or clearance hole size (e.g., M3 for a 3mm threaded hole). For length, measure the thickness of the material being fastened — the screw should engage at least 1.5× the thread diameter into the receiving material. For example, M3 x 8mm (≈5\/16\") is typically used for fastening two 3–4mm panels together. Lengths in this listing run from 3mm (≈1\/8\") to 50mm (≈2\") depending on the diameter selected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the advantage of a large flat head design over a standard head?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe oversized flat head distributes clamping load over a larger surface area, reducing the risk of the screw pulling through soft or thin materials such as plastic panels, sheet metal, wood composites, and electronics enclosures. This makes large flat head screws particularly useful in applications where a standard head would sink into or strip the material around the hole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Allen, Torx, Slotted, and Groove-Free drive types?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eAllen (hex socket)\u003c\/strong\u003e drive offers good torque transfer and is widely used in machinery and furniture. \u003cstrong\u003eTorx (star)\u003c\/strong\u003e drive resists cam-out better than Allen and is common in electronics and automotive assembly. \u003cstrong\u003eSlotted\u003c\/strong\u003e drive is the traditional flat-blade type, useful when only a flathead screwdriver is available. \u003cstrong\u003eGroove-Free\u003c\/strong\u003e (smooth head) variants have no drive recess and are typically used as decorative or tamper-resistant fasteners. Select the drive type that matches your available tools and application requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich material finish should I choose for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eStainless Steel\u003c\/strong\u003e offers the best corrosion resistance and is suitable for outdoor, marine, or humid environments. \u003cstrong\u003eBlack Zinc\u003c\/strong\u003e and \u003cstrong\u003eWhite Zinc\u003c\/strong\u003e coatings provide moderate corrosion protection for indoor mechanical assemblies. \u003cstrong\u003eBright Nickel\u003c\/strong\u003e and \u003cstrong\u003eBlack Nickel\u003c\/strong\u003e finishes add a decorative appearance while offering light corrosion resistance. \u003cstrong\u003eElectrophoresis Black\u003c\/strong\u003e provides a uniform matte black coating with good adhesion. \u003cstrong\u003eBlack Zinc With Glue\u003c\/strong\u003e variants include a pre-applied thread-locking compound for vibration-resistant installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these screws suitable for outdoor or corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStainless Steel variants are generally suitable for outdoor and humid environments. Carbon steel variants with zinc or nickel coatings are typically intended for indoor or protected applications. For harsh outdoor or marine environments, stainless steel is the recommended choice. Contact us if you need guidance on the most suitable finish for your specific conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these machine screws use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese screws use standard ISO metric coarse thread (e.g., M3 × 0.5mm pitch, M5 × 0.8mm pitch). They are compatible with any matching metric nut, threaded insert, or tapped hole following ISO 68-1 thread standards — widely used in electronics, automotive, and general mechanical assembly worldwide.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does “Black Zinc With Glue” mean and when should I use it?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e“Black Zinc With Glue” means the screw has a black zinc coating plus a pre-applied thread-locking adhesive patch on the threads. This eliminates the need for separate thread-locking compound (such as Loctite) and is ideal for assemblies subject to vibration, such as motor mounts, machinery panels, and automotive components. The adhesive activates when the screw is tightened into a threaded hole. Note: these screws are generally single-use once the adhesive has been activated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003ematerial, thread diameter \u0026amp; length, and drive type\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Carbon Steel \/ Black Zinc With Glue \/ M2 x 4 mm Torx \/ 100 PCS","offer_id":52285317447954,"sku":"GYJLTJLWJ04099x1","price":9.11,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc With Glue \/ M2.5 x 3 mm Torx \/ 100 PCS","offer_id":52285317480722,"sku":"GYJLTJLWJ04100x1","price":10.31,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Bright Nickel \/ M2.5 x 4 mm Torx \/ 100 PCS","offer_id":52285317513490,"sku":"GYJLTJLWJ04101x1","price":12.25,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc With Glue \/ M2.5 x 5 mm Torx \/ 100 PCS","offer_id":52285317546258,"sku":"GYJLTJLWJ04102x1","price":11.36,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc With Glue \/ M2.5 x 6 mm Torx \/ 100 PCS","offer_id":52285317579026,"sku":"GYJLTJLWJ04103x1","price":11.21,"currency_code":"USD","in_stock":true},{"title":"Stainless Steel \/ M2.5 x 7 mm Allen \/ 100 PCS","offer_id":52285317611794,"sku":"GYJLTJLWJ04104x1","price":8.23,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc \/ M2.5 x 7 mm Allen \/ 100 PCS","offer_id":52285317644562,"sku":"GYJLTJLWJ04105x1","price":8.96,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc With Glue \/ M2.5 x 10 mm Torx \/ 100 PCS","offer_id":52285317677330,"sku":"GYJLTJLWJ04106x1","price":12.05,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc With Glue \/ M2.5 x 10 mm Torx + Slotted \/ 100 PCS","offer_id":52285317710098,"sku":"GYJLTJLWJ04107x1","price":13.55,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Electrophoresis Black \/ M3 x 5 mm Torx \/ 100 PCS","offer_id":52285317742866,"sku":"GYJLTJLWJ04108x1","price":11.21,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc \/ M3 x 6 mm Allen \/ 100 PCS","offer_id":52285317775634,"sku":"GYJLTJLWJ04109x1","price":9.56,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Bright Nickel \/ M3 x 6 mm Allen \/ 100 PCS","offer_id":52285317808402,"sku":"GYJLTJLWJ04110x1","price":10.61,"currency_code":"USD","in_stock":true},{"title":"Stainless Steel \/ M3 x 8 mm Allen \/ 100 PCS","offer_id":52285317841170,"sku":"GYJLTJLWJ04111x1","price":11.21,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc \/ M3 x 12 mm Slotted \/ 100 PCS","offer_id":52285317873938,"sku":"GYJLTJLWJ04112x1","price":22.43,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc \/ M3 x 14 mm Allen \/ 100 PCS","offer_id":52285317906706,"sku":"GYJLTJLWJ04113x1","price":13.1,"currency_code":"USD","in_stock":true},{"title":"Stainless Steel \/ M4 x 16 mm Groove-Free \/ 100 PCS","offer_id":52285317939474,"sku":"GYJLTJLWJ04115x1","price":26.56,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc \/ M4 x 28.6 mm Allen \/ 100 PCS","offer_id":52285317972242,"sku":"GYJLTJLWJ04116x1","price":31.25,"currency_code":"USD","in_stock":true},{"title":"Stainless Steel \/ M5 x 12 mm Torx \/ 100 PCS","offer_id":52285318005010,"sku":"GYJLTJLWJ04117x1","price":32.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Nickel \/ M5 x 14 mm Allen \/ 100 PCS","offer_id":52285318037778,"sku":"GYJLTJLWJ04118x1","price":40.92,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Nickel \/ M5 x 30 mm Allen \/ 100 PCS","offer_id":52285318070546,"sku":"GYJLTJLWJ04119x1","price":49.15,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Black Zinc \/ M6 x 6 mm Allen \/ 100 PCS","offer_id":52285318103314,"sku":"GYJLTJLWJ04120x1","price":29.1,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Bright Nickel \/ M6 x 16 mm Allen \/ 100 PCS","offer_id":52285318136082,"sku":"GYJLTJLWJ04121x1","price":38.08,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ Bright Nickel \/ M6 x 25 mm Allen \/ 100 PCS","offer_id":52285318168850,"sku":"GYJLTJLWJ04122x1","price":49.75,"currency_code":"USD","in_stock":true},{"title":"Carbon Steel \/ White Zinc \/ M6 x 50 mm Allen \/ 100 PCS","offer_id":52285318201618,"sku":"GYJLTJLWJ04123x1","price":100.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of26_4c6b5267-ed7a-418b-891f-9f6e5a38131c.jpg?v=1780502947","url":"https:\/\/homediyer.com\/products\/large-flat-head-machine-screws-m2-m6-allen-torx-slotted","provider":"HomeDIYer","version":"1.0","type":"link"}