{"title":"ISO7380 Button Head SEMS Screws - Stainless Steel (A2)","description":"\u003ch1\u003eISO7380 Button Head SEMS Screws – Stainless Steel A2 (SUS304)\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG ISO7380 Button Head SEMS Screws are a three-in-one captive fastener assembly: an ISO7380 low-profile button head 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 — delivering broad load distribution, vibration resistance, and faster assembly in a single corrosion-resistant A2 stainless steel unit.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e1. What Are ISO7380 Button Head SEMS Screws?\u003c\/h2\u003e\n\n\u003cp\u003eSEMS (pre-\u003cstrong\u003eS\u003c\/strong\u003eubassembled and \u003cstrong\u003eE\u003c\/strong\u003edge-retained \u003cstrong\u003eM\u003c\/strong\u003eetal \u003cstrong\u003eS\u003c\/strong\u003ecrews) are fasteners with one or more washers permanently captured on the shank before threading. The ISO7380 Button Head SEMS Screw is a \u003cstrong\u003etri-combination (三组合)\u003c\/strong\u003e assembly consisting of three components:\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\u003eFunction\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 internal hex (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 over a larger bearing area; protects substrate surface\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\u003eProvides elastic resistance against loosening under vibration and dynamic loads\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eAll three components are permanently captured on the screw shank — the washers rotate freely but cannot be removed. The assembly order from head to thread is: \u003cstrong\u003eScrew Head → Spring Washer (GB9074.26) → Flat Washer (GB9074.24) → Thread\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStandard:\u003c\/strong\u003e ISO 7380.3  |  \u003cstrong\u003eDrive Type:\u003c\/strong\u003e Hexagon Socket (Allen Key)  |  \u003cstrong\u003eAssembly:\u003c\/strong\u003e Tri-combination (Screw + Flat Washer + Spring Washer)\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e2. Benefits of Using ISO7380 Button Head SEMS Screws\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBenefit\u003c\/th\u003e\n      \u003cth\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e⚡ Faster Assembly\u003c\/td\u003e\n      \u003ctd\u003eAll three components pre-assembled — eliminates separate washer handling; reduces assembly time significantly in high-volume production\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🔒 No Lost Parts\u003c\/td\u003e\n      \u003ctd\u003eBoth flat and spring washers are captive on the shank — no dropped or missing washers on the production line\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🎯 Broad Load Distribution\u003c\/td\u003e\n      \u003ctd\u003eFlat washer (GB9074.24) spreads clamping force over a larger bearing area, preventing pull-through on thin or soft substrates\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🔩 Vibration Resistance\u003c\/td\u003e\n      \u003ctd\u003eSpring washer (GB9074.26) provides elastic preload that resists self-loosening under dynamic loads and vibration\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e✨ Clean Aesthetics\u003c\/td\u003e\n      \u003ctd\u003eLow-profile ISO7380 button head provides a smooth, flush appearance — ideal for visible or consumer-facing surfaces\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🛡️ Corrosion Resistance\u003c\/td\u003e\n      \u003ctd\u003eA2 stainless steel (SUS304) with passivation — suitable for indoor, humid, and mildly corrosive environments\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e📦 Simplified Inventory\u003c\/td\u003e\n      \u003ctd\u003eOne SKU replaces three separate components (screw + flat washer + spring washer), reducing procurement and storage complexity\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e✅ Consistent Quality\u003c\/td\u003e\n      \u003ctd\u003eFactory-assembled under controlled conditions ensures correct washer stack order and orientation every time\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e3. Material \u0026amp; Finish\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eProperty\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003eA2 Stainless Steel (SUS304 \/ 18-8) — screw, flat washer, and spring washer all in A2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSurface Treatment\u003c\/td\u003e\n      \u003ctd\u003ePassivation (natural \/ self-color)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStrength Grade\u003c\/td\u003e\n      \u003ctd\u003eA2-70\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTensile Strength\u003c\/td\u003e\n      \u003ctd\u003e≥ 700 MPa\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProof Load Stress\u003c\/td\u003e\n      \u003ctd\u003e≥ 580 MPa\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHardness\u003c\/td\u003e\n      \u003ctd\u003eHV 220 max\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n      \u003ctd\u003eExcellent in atmospheric and mildly corrosive environments\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMagnetic\u003c\/td\u003e\n      \u003ctd\u003eSlightly magnetic (work-hardened austenitic stainless steel)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e4. Pre-Assembled Washer Dimensions\u003c\/h2\u003e\n\n\u003cp\u003eBoth washers are permanently captured on the screw shank. Assembly order from screw head: \u003cstrong\u003eSpring Washer (GB9074.26) → Flat Washer (GB9074.24)\u003c\/strong\u003e. The flat washer contacts the workpiece surface.\u003c\/p\u003e\n\n\u003ch3\u003e4.1 Flat Washer — GB\/T 9074.24\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eScrew Size\u003c\/th\u003e\n      \u003cth\u003eInner Dia. d₁ (mm)\u003c\/th\u003e\n      \u003cth\u003eOuter Dia. d₂ (mm)\u003c\/th\u003e\n      \u003cth\u003eThickness h (mm)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003ctd\u003e7.0\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e4.3\u003c\/td\u003e\n\u003ctd\u003e9.0\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e5.3\u003c\/td\u003e\n\u003ctd\u003e10.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e6.4\u003c\/td\u003e\n\u003ctd\u003e12.0\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e8.4\u003c\/td\u003e\n\u003ctd\u003e16.0\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e10.5\u003c\/td\u003e\n\u003ctd\u003e20.0\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e4.2 Spring Washer (Split Lock Washer) — GB\/T 9074.26\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eScrew Size\u003c\/th\u003e\n      \u003cth\u003eInner Dia. d₁ (mm)\u003c\/th\u003e\n      \u003cth\u003eOuter Dia. d₂ (mm)\u003c\/th\u003e\n      \u003cth\u003eThickness \/ Height s (mm)\u003c\/th\u003e\n      \u003cth\u003eWidth b (mm)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e3.1\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e4.1\u003c\/td\u003e\n\u003ctd\u003e6.8\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003ctd\u003e8.2\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e6.1\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e8.1\u003c\/td\u003e\n\u003ctd\u003e13.0\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e10.2\u003c\/td\u003e\n\u003ctd\u003e16.2\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Spring washer dimensions per GB\/T 9074.26 (equivalent to GB\/T 93). Inner diameter d₁ allows free rotation on screw shank. Both washers are captive and non-removable after assembly.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e5. Dimensional Data — ISO7380 Screw Body\u003c\/h2\u003e\n\n\u003cp\u003eAll dimensions in millimeters (mm). Tolerances per ISO 7380 and ISO 4759-1.\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSize\u003c\/th\u003e\n      \u003cth\u003ePitch P (mm)\u003c\/th\u003e\n      \u003cth\u003eHead Dia. dk (mm)\u003c\/th\u003e\n      \u003cth\u003eHead Height k (mm)\u003c\/th\u003e\n      \u003cth\u003eSocket Size s (mm)\u003c\/th\u003e\n      \u003cth\u003eSocket Depth t (mm)\u003c\/th\u003e\n      \u003cth\u003eMin. Thread Length b (mm)\u003c\/th\u003e\n      \u003cth\u003eApprox. Unit Weight (g\/pc) L=20mm\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e5.7\u003c\/td\u003e\n\u003ctd\u003e1.65\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1.04\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e0.55\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e7.6\u003c\/td\u003e\n\u003ctd\u003e2.20\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e1.30\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e1.15\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e9.5\u003c\/td\u003e\n\u003ctd\u003e2.75\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e1.56\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e2.10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e10.5\u003c\/td\u003e\n\u003ctd\u003e3.30\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2.08\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e3.60\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e1.25\u003c\/td\u003e\n\u003ctd\u003e14.0\u003c\/td\u003e\n\u003ctd\u003e4.40\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2.60\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e7.80\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e17.5\u003c\/td\u003e\n\u003ctd\u003e5.50\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e3.12\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e15.20\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003e* Unit weight is approximate for L=20mm in A2 stainless steel, including both pre-assembled washers (flat + spring). Actual weight varies with length. Contact FULLERKREG for weight data on specific lengths.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e6. Available Lengths\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSize\u003c\/th\u003e\n      \u003cth\u003eAvailable Lengths L (mm)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e6, 8, 10, 12, 16, 20, 25, 30\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e6, 8, 10, 12, 16, 20, 25, 30, 35, 40\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e8, 10, 12, 16, 20, 25, 30, 35, 40, 50\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e10, 12, 16, 20, 25, 30, 35, 40, 50, 60\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e12, 16, 20, 25, 30, 35, 40, 50, 60, 70, 80\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e16, 20, 25, 30, 35, 40, 50, 60, 70, 80\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e7. Product 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\u003e8. Applications\u003c\/h2\u003e\n\n\u003cp\u003eISO7380 Button Head SEMS Screws are ideal wherever a low-profile head, captive dual-washer stack, vibration resistance, and corrosion resistance are required simultaneously:\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eIndustry\u003c\/th\u003e\n      \u003cth\u003eTypical Application\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🖥️ Electronics \u0026amp; IT Equipment\u003c\/td\u003e\n      \u003ctd\u003eServer chassis, PCB mounting, enclosure panels, rack-mount equipment — vibration from fans and drives makes spring washer essential\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e⚙️ Mechanical \u0026amp; Industrial\u003c\/td\u003e\n      \u003ctd\u003eMachine guards, access panels, conveyor frames, pump housings — dynamic loads require anti-loosening spring washer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🚗 Automotive \u0026amp; EV\u003c\/td\u003e\n      \u003ctd\u003eInterior trim panels, battery enclosures, sensor brackets — vibration environment demands tri-combination reliability\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🏗️ Sheet Metal Fabrication\u003c\/td\u003e\n      \u003ctd\u003eThin sheet assemblies where flat washer prevents pull-through and spring washer prevents loosening\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🔬 Medical Devices\u003c\/td\u003e\n      \u003ctd\u003eEquipment housings requiring clean, flush fastening surfaces with secure retention\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e🏠 Appliances \u0026amp; Consumer Products\u003c\/td\u003e\n      \u003ctd\u003eWhite goods, HVAC units, lighting fixtures — motor vibration makes spring washer critical for long-term retention\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose 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, and GB\/T 9074.26 standards\u003cbr\u003e\n📦 \u003cstrong\u003eFlexible MOQ\u003c\/strong\u003e — Bulk packs, reels, and custom packaging available\u003cbr\u003e\n🌍 \u003cstrong\u003eGlobal Export Experience\u003c\/strong\u003e — Shipped to 40+ countries with full 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":[{"product_id":"246217","title":"M4-0.7x6 ISO7380 A2-70 stainless steel button head SEMS screw-15000 Pcs per Carton","description":"","brand":"fullerkreg","offers":[{"title":"Default Title","offer_id":53976946901103,"sku":"246217","price":225.0,"currency_code":"USD","in_stock":true}]},{"product_id":"246227","title":"M4-0.7x8 ISO7380 A2-70 stainless steel button head SEMS screw-12000 Pcs per Carton","description":"","brand":"fullerkreg","offers":[{"title":"Default Title","offer_id":53976946966639,"sku":"246227","price":180.0,"currency_code":"USD","in_stock":true}]},{"product_id":"246230","title":"M4-0.7x10 ISO7380 A2-70 stainless steel button head SEMS screw-12000 Pcs per Carton","description":"","brand":"fullerkreg","offers":[{"title":"Default Title","offer_id":53976947458159,"sku":"246230","price":192.0,"currency_code":"USD","in_stock":true}]},{"product_id":"246233","title":"M4-0.7x12 ISO7380 A2-70 stainless steel button head SEMS screw-10000 Pcs per 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