{"product_id":"200pcs-m3-m8-hex-socket-set-screw-assortment-kit-black-grade-12-9","title":"200pc M3–M8 Hex Socket Set Screw Assortment Kit | Grade 12.9","description":"\n\u003ch2\u003e200-Piece Hex Socket Set Screw Assortment Kit – M3 to M8 | Grade 12.9 Alloy Steel\u003c\/h2\u003e\n\u003cp\u003eKeep your workshop stocked and ready with this comprehensive \u003cstrong\u003e200-piece hex socket cup point set screw assortment\u003c\/strong\u003e by JARBLUE. Covering five metric sizes from M3 to M8, this CE-certified kit is built from \u003cstrong\u003eGrade 12.9 alloy steel\u003c\/strong\u003e — one of the highest strength grades available — with a sleek black finish for added durability and corrosion resistance. Everything is neatly packed in an organized storage box so you can find the right size fast.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Kit?\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSize\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eQuantity\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM3 × 3mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM3 × 4mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM3 × 6mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM4 × 4mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM4 × 6mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM5 × 5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM5 × 8mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM6 × 6mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM6 × 10mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eM8 × 8mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f2f2f2; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eTotal\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e200 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade 12.9 Alloy Steel\u003c\/strong\u003e – Superior tensile strength for demanding fastening applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Socket Cup Point Drive\u003c\/strong\u003e – Secure Allen key engagement; minimizes cam-out\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlack Oxide Finish\u003c\/strong\u003e – Adds a layer of corrosion resistance and a professional look\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10 Size Variants\u003c\/strong\u003e – M3 through M8, covering the most common metric set screw applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified\u003c\/strong\u003e – Meets recognized safety and quality standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrganized Storage Box Included\u003c\/strong\u003e – Each size in its own compartment for quick access and tidy storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e200 Pieces\u003c\/strong\u003e – Plenty of stock for ongoing projects, repairs, and builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWoodworking jigs and fixtures\u003c\/li\u003e\n  \u003cli\u003eMachine assembly and equipment maintenance\u003c\/li\u003e\n  \u003cli\u003eElectronics enclosures and DIY builds\u003c\/li\u003e\n  \u003cli\u003eBicycle, motorcycle, and general mechanical repairs\u003c\/li\u003e\n  \u003cli\u003e3D printer frames and CNC machine setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e JARBLUE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Grade 12.9 Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Style:\u003c\/strong\u003e Hex Socket (Allen Key)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Type:\u003c\/strong\u003e Cup Point Set Screws\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Quantity:\u003c\/strong\u003e 200 pcs (10 sizes × 20 pcs each)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12pcs-16mm-momentary-push-button-switch-1no-metal-2-pin-self-reset\"\u003e12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a cup point set screw and how is it used?\u003c\/h4\u003e\n\u003cp\u003eA: A cup point set screw is a headless fastener with a small cupped recess at its tip. When tightened against a shaft or surface, the cup point bites in slightly to grip securely without protruding. It's driven with a hex (Allen) key inserted into the socket on the opposite end. These screws are widely used to lock gears, pulleys, collars, and knobs onto shafts in machinery and mechanical assemblies.\u003c\/p\u003e\n\u003ch4\u003eQ: What Allen key sizes do I need for these hex socket set screws?\u003c\/h4\u003e\n\u003cp\u003eA: The required Allen key (hex wrench) sizes vary by screw diameter: M3 typically requires a 1.5mm hex key, M4 a 2mm, M5 a 2.5mm, M6 a 3mm, and M8 a 4mm. Most standard metric Allen key sets will cover all five sizes included in this assortment kit.\u003c\/p\u003e\n\u003ch4\u003eQ: Is Grade 12.9 alloy steel strong enough for heavy-duty applications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Grade 12.9 is among the highest strength grades for metric fasteners, offering a tensile strength of approximately 1220 MPa. This makes these set screws well-suited for high-load, high-torque applications where lower-grade hardware might deform or slip.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the kit come with a storage case?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The 200-piece set comes with a compartmentalized storage box, with each of the 10 size variants organized in its own section. This makes it easy to identify and retrieve the exact screw you need without rummaging through a mixed bag.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a cup point set screw and how is it used?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A cup point set screw is a headless fastener with a small cupped recess at its tip. When tightened against a shaft or surface, the cup point bites in slightly to grip securely without protruding. It's driven with a hex (Allen) key inserted into the socket on the opposite end. 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