{"product_id":"m3-m4-m5-m6-m8-m10-aluminium-phillips-machine-screws-countersunk-flat-head-bolts","title":"M3-M10 Aluminum Alloy Phillips Countersunk Flat Head Machine Screws | Anodized","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What material are these screws made from?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"These screws are made from aluminum alloy with an anodized surface treatment. Aluminum alloy provides a lightweight, corrosion-resistant fastener suitable for applications where weight reduction is important.\"}},{\"@type\":\"Question\",\"name\":\"How do I choose the right screw size?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Select the thread diameter (M3–M10) to match your tapped hole or nut, and choose a length (6–50mm) that provides adequate thread engagement — typically at least 1.5× the thread diameter.\"}},{\"@type\":\"Question\",\"name\":\"What tool do I need to drive these screws?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"These screws use a Phillips (cross) drive. A standard Phillips screwdriver or Phillips bit in a power driver is required. Use the correct bit size (PH1 for M3–M4, PH2 for M5–M8, PH3 for M10) to avoid cam-out.\"}},{\"@type\":\"Question\",\"name\":\"Are aluminum screws as strong as steel screws?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Aluminum alloy screws are lighter than steel but have lower tensile strength. They are well-suited for lightweight assemblies, electronics, RC models, and applications where weight savings matter more than maximum load capacity.\"}},{\"@type\":\"Question\",\"name\":\"Will the head sit flush when installed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The countersunk flat head is designed to sit flush with or below the surface when installed in a properly countersunk hole. Ensure your workpiece is countersunk at the correct angle to match the head profile.\"}},{\"@type\":\"Question\",\"name\":\"What is the tolerance range for these screws?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The dimensional tolerance range is ±0.3mm, which is standard for metric aluminum fasteners in this size range.\"}},{\"@type\":\"Question\",\"name\":\"What are typical applications for these screws?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Common applications include RC aircraft and drone frames, bicycle components, electronics enclosures, camera equipment, lightweight machinery, and any assembly where reducing fastener weight is a priority.\"}},{\"@type\":\"Question\",\"name\":\"How many screws are included per order?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pack quantity varies by size: M3 comes in 100 pcs, M4 and M5 in 50 pcs, M6 in 20 pcs, M8 in 10 pcs, and M10 in 5 pcs. Select your thread diameter, length, and quantity from the options above before adding to cart.\"}}]}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003ch2\u003eAluminum Alloy Phillips Countersunk Screws — Lightweight Fastening for Weight-Critical Builds\u003c\/h2\u003e\n\u003cp\u003eEvery gram matters when you're building RC aircraft, drone frames, lightweight bicycle components, or precision electronics enclosures. Standard steel screws add unnecessary weight to assemblies where performance depends on keeping mass low. These aluminum alloy Phillips countersunk flat head machine screws deliver a secure, flush-fit fastening solution at a fraction of the weight of steel — without sacrificing the corrosion resistance you need for long-term reliability.\u003c\/p\u003e\n\u003cp\u003eEach screw is machined from aluminum alloy with an anodized surface treatment that enhances corrosion resistance and provides a clean, natural aluminum finish. Available in thread diameters from M3 to M10 and lengths from 6mm to 50mm (approximately 0.24\" to 1.97\"), with pack quantities ranging from 5 to 100 pieces depending on size. The countersunk flat head profile sits flush with the surface for a clean, low-profile result on panels, frames, and enclosures.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include assembling RC aircraft and drone frames (M3–M4), securing lightweight bicycle and cycling components (M4–M6), mounting electronics and camera equipment housings (M3–M5), and fastening aluminum extrusion panels and lightweight machinery guards (M5–M8) where reducing fastener weight is a design priority.\u003c\/p\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e Compatible with standard ISO metric tapped holes and threaded inserts. Requires a Phillips (cross) screwdriver or bit — PH1 for M3–M4, PH2 for M5–M8, PH3 for M10.\n\u003c\/div\u003e\n\n\u003ch2\u003e✅ Key Features of These Aluminum Phillips Countersunk Machine Screws\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e \u003cstrong\u003eLightweight Aluminum Alloy Construction\u003c\/strong\u003e — Significantly lighter than steel fasteners, making these screws ideal for weight-sensitive applications in RC, aerospace models, cycling, and electronics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eAnodized Surface Treatment\u003c\/strong\u003e — Anodizing enhances corrosion and oxidation resistance, extending service life in both indoor and moderate outdoor environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003ePhillips (Cross) Drive\u003c\/strong\u003e — Standard Phillips drive is compatible with widely available screwdrivers and power tool bits, making installation fast and straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eCountersunk Flat Head Profile\u003c\/strong\u003e — Sits flush with or below the surface for a clean, snag-free finish on panels, frames, and enclosures — no protruding head to catch or interfere.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eWide Size Range — M3 to M10\u003c\/strong\u003e — Covers the most common metric thread sizes for lightweight assemblies, with lengths from 6mm to 50mm to suit a broad range of material thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eMetric Standard, ±0.3mm Tolerance\u003c\/strong\u003e — Manufactured to GB metric standard with a ±0.3mm dimensional tolerance, ensuring consistent fit in standard metric tapped holes and threaded inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e📐 Technical Specifications — Aluminum Phillips Countersunk Flat Head Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Treatment\u003c\/th\u003e\n\u003ctd\u003eAnodized (Natural Aluminum Color)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Type\u003c\/th\u003e\n\u003ctd\u003eCountersunk Flat Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003ePhillips (Cross Drive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eISO Metric \/ GB Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Diameter Range\u003c\/th\u003e\n\u003ctd\u003eM3 \/ M4 \/ M5 \/ M6 \/ M8 \/ M10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength Range\u003c\/th\u003e\n\u003ctd\u003e6mm – 50mm (approx. 0.24\" – 1.97\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Tolerance\u003c\/th\u003e\n\u003ctd\u003e±0.3mm\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\u003ePack Quantity Options\u003c\/th\u003e\n\u003ctd\u003e5 \/ 10 \/ 20 \/ 50 \/ 100 pcs (varies by size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Tools\u003c\/th\u003e\n\u003ctd\u003ePhillips Screwdriver PH1 (M3–M4), PH2 (M5–M8), PH3 (M10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eRC aircraft, drones, bicycles, electronics, lightweight machinery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat material are these screws made from?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThese screws are made from aluminum alloy with an anodized surface treatment. Aluminum alloy provides a lightweight, corrosion-resistant fastener suitable for applications where weight reduction is important.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right screw size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eSelect the thread diameter (M3–M10) to match your tapped hole or nut, and choose a length (6–50mm) that provides adequate thread engagement — typically at least 1.5× the thread diameter. For blind holes, ensure the screw length does not exceed the hole depth.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat tool do I need to drive these screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThese screws use a Phillips (cross) drive. A standard Phillips screwdriver or Phillips bit in a power driver is required. Use the correct bit size to avoid cam-out: PH1 for M3–M4, PH2 for M5–M8, PH3 for M10.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre aluminum screws as strong as steel screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eAluminum alloy screws are lighter than steel but have lower tensile strength. They are well-suited for lightweight assemblies, electronics, RC models, and applications where weight savings matter more than maximum load capacity. For high-load structural applications, steel fasteners are generally recommended.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWill the head sit flush when installed?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eYes. The countersunk flat head is designed to sit flush with or below the surface when installed in a properly countersunk hole. Ensure your workpiece is countersunk at the correct angle to match the head profile for a clean flush fit.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the tolerance range for these screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThe dimensional tolerance range is ±0.3mm, which is standard for metric aluminum fasteners in this size range. This ensures consistent fit in standard metric tapped holes and threaded inserts.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat are typical applications for these screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eCommon applications include RC aircraft and drone frames, bicycle and cycling components, electronics and camera equipment housings, lightweight machinery panels, and any assembly where reducing fastener weight is a design priority.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow many screws are included per order?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003ePack quantity varies by size: M3 comes in 100 pcs, M4 and M5 in 50 pcs, M6 in 20 pcs, M8 in 10 pcs, and M10 in 5 pcs. Select your thread diameter, length, and quantity from the options above before adding to cart.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Thread Dia x Length and Amount above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M3x6mm \/ 100 Pcs","offer_id":52260750164242,"sku":"LRP13631x1","price":3.4,"currency_code":"USD","in_stock":true},{"title":"M3x8mm \/ 100 Pcs","offer_id":52260750197010,"sku":"LRP13632x1","price":3.77,"currency_code":"USD","in_stock":true},{"title":"M3x10mm \/ 100 Pcs","offer_id":52260750229778,"sku":"LRP13633x1","price":4.12,"currency_code":"USD","in_stock":true},{"title":"M3x12mm \/ 100 Pcs","offer_id":52260750262546,"sku":"LRP13634x1","price":4.68,"currency_code":"USD","in_stock":true},{"title":"M3x16mm \/ 100 Pcs","offer_id":52260750295314,"sku":"LRP13635x1","price":5.77,"currency_code":"USD","in_stock":true},{"title":"M4x6mm \/ 50 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