{"title":"ISO7380 Button Head SEMS Screws","description":"\u003ch1\u003eISO7380 Button Head SEMS Screws\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG ISO7380 Button Head SEMS Screws are a \u003cstrong\u003etri-combination captive fastener assembly\u003c\/strong\u003e consisting of an ISO7380 low-profile button head cap screw with a pre-assembled \u003cstrong\u003eflat washer (GB\/T 9074.24)\u003c\/strong\u003e and \u003cstrong\u003espring washer (GB\/T 9074.26)\u003c\/strong\u003e. The domed button head provides a clean, flush appearance; the captive dual-washer stack delivers broad load distribution and vibration-resistant retention — all in one inseparable unit. Available in A2 stainless steel and high-strength alloy steel Class 10.9 black oxide.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eISO7380 Button Head SEMS Screw Series\u003c\/h2\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/iso7380-button-head-sems-screws-stainless-steel-a2\"\u003e\u003cstrong\u003eISO7380 Button Head SEMS Screws — Stainless Steel A2 (SUS304)\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  Material: A2 Stainless Steel (SUS304)  ·  Finish: Passivated  ·  Grade: A2-70  ·  Washers: GB9074.24 + GB9074.26  ·  Range: M3–M10\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/iso7380-button-head-sems-screws-alloy-steel-10-9-black\"\u003e\u003cstrong\u003eISO7380 Button Head SEMS Screws — Alloy Steel Class 10.9, Black Oxide\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  Material: Alloy Steel 10B21  ·  Finish: Black Oxide  ·  Grade: Class 10.9  ·  Washers: GB9074.24 + GB9074.26  ·  Range: M3–M10\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSelection Guide\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSeries\u003c\/th\u003e\n      \u003cth\u003eMaterial\u003c\/th\u003e\n      \u003cth\u003eFinish\u003c\/th\u003e\n      \u003cth\u003eGrade\u003c\/th\u003e\n      \u003cth\u003eTensile Strength\u003c\/th\u003e\n      \u003cth\u003eBest For\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003ca href=\"\/collections\/iso7380-button-head-sems-screws-stainless-steel-a2\"\u003eA2 Stainless Steel\u003c\/a\u003e\u003c\/td\u003e\n      \u003ctd\u003eSUS304 (18-8)\u003c\/td\u003e\n      \u003ctd\u003ePassivated\u003c\/td\u003e\n      \u003ctd\u003eA2-70\u003c\/td\u003e\n      \u003ctd\u003e≥ 700 MPa\u003c\/td\u003e\n      \u003ctd\u003eCorrosion resistance, electronics, appliances, visible surfaces\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003ca href=\"\/collections\/iso7380-button-head-sems-screws-alloy-steel-10-9-black\"\u003eAlloy Steel 10.9 Black\u003c\/a\u003e\u003c\/td\u003e\n      \u003ctd\u003eAlloy Steel 10B21\u003c\/td\u003e\n      \u003ctd\u003eBlack Oxide\u003c\/td\u003e\n      \u003ctd\u003eClass 10.9\u003c\/td\u003e\n      \u003ctd\u003e≥ 1040 MPa\u003c\/td\u003e\n      \u003ctd\u003eHigh-strength joints, automotive, machinery, robotics, black aesthetics\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat Is an ISO7380 Button Head SEMS Screw?\u003c\/h2\u003e\n\n\u003cp\u003eISO7380 Button Head SEMS Screws combine three components into one inseparable assembly:\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eComponent\u003c\/th\u003e\n      \u003cth\u003eStandard\u003c\/th\u003e\n      \u003cth\u003eRole\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003e① ISO7380 Button Head Cap Screw\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eISO 7380 \/ ISO 7380.3\u003c\/td\u003e\n      \u003ctd\u003eLow-profile domed head with hex socket (Allen) drive; provides clamping force\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003e② Flat Washer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGB\/T 9074.24\u003c\/td\u003e\n      \u003ctd\u003eDistributes clamping load; protects substrate surface from indentation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003e③ Spring Washer (Split Lock Washer)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGB\/T 9074.26\u003c\/td\u003e\n      \u003ctd\u003eElastic preload resists self-loosening under vibration and dynamic loads\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eAssembly order from screw head to workpiece: \u003cstrong\u003eHead → Spring Washer (GB9074.26) → Flat Washer (GB9074.24) → Workpiece\u003c\/strong\u003e. Both washers rotate freely on the shank but cannot be removed after assembly.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Images\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e \u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e \u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e \u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e \u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy FULLERKREG?\u003c\/h2\u003e\n\n\u003cp\u003e🏭 \u003cstrong\u003eDirect Manufacturer\u003c\/strong\u003e — Full in-house production from wire drawing to finished tri-combination assembly\u003cbr\u003e\n📐 \u003cstrong\u003eStrict Dimensional Control\u003c\/strong\u003e — 100% inspection against ISO 7380, GB\/T 9074.24 \u0026amp; GB\/T 9074.26\u003cbr\u003e\n📦 \u003cstrong\u003eFlexible MOQ\u003c\/strong\u003e — Bulk packs and custom packaging available across all grades\u003cbr\u003e\n🌍 \u003cstrong\u003eGlobal Export Experience\u003c\/strong\u003e — Shipped to 40+ countries with full compliance documentation\u003cbr\u003e\n📋 \u003cstrong\u003eFull Traceability\u003c\/strong\u003e — Material certs, test reports, and RoHS declarations on request\u003cbr\u003e\n⚡ \u003cstrong\u003eFast Lead Times\u003c\/strong\u003e — Standard sizes in stock; custom lengths within 7–15 days\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/iso7380-button-head-sems-screws.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}