{"title":"Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4 Bare","description":"\u003ch1\u003eWeld Nuts (DIN 929) — Q195 Low Carbon Steel, ISO Class 4, Bare\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 929 hexagon weld nuts in Q195 low carbon steel at ISO Class 4 represent the most economical and weld-friendly option in the DIN 929 range. Manufactured to the DIN 929 standard, each nut features three symmetrically arranged welding projections on the bearing face that collapse and fuse with the base material during resistance welding, creating a flush, permanent joint. Q195 is a Chinese national standard (GB\/T 700) low carbon structural steel with extremely low carbon content, delivering outstanding weldability, excellent ductility, and consistent resistance welding performance — making it the preferred choice for light-duty sheet-metal assemblies, HVAC, furniture, and consumer electronics enclosures where high mechanical strength is not the primary requirement. The bare (uncoated) surface is the standard delivery condition for applications where post-weld painting, powder coating, or e-coating will be applied. Available in thread sizes M3 through M16.\u003c\/p\u003e\n\n\u003ch2\u003eDimensional Data\u003c\/h2\u003e\n\u003cp\u003eAll dimensions in mm. Tolerances per DIN 929. Unit weight (g) is theoretical reference value for carbon steel (density 7.85 g\/cm³).\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;text-align:center;\"\u003e\n  \u003cthead style=\"background-color:#f2f2f2;\"\u003e\n    \u003ctr\u003e\n      \u003cth\u003eThread\u003cbr\u003ed\u003c\/th\u003e\n      \u003cth\u003ePitch\u003cbr\u003e(mm)\u003c\/th\u003e\n      \u003cth\u003eNut Height\u003cbr\u003em (h14)\u003c\/th\u003e\n      \u003cth\u003eAcross Flats\u003cbr\u003es (h13)\u003c\/th\u003e\n      \u003cth\u003eAcross Corners\u003cbr\u003ee (min)\u003c\/th\u003e\n      \u003cth\u003eSpigot Dia.\u003cbr\u003ed2 (tol d11)\u003c\/th\u003e\n      \u003cth\u003eSpigot Proj.\u003cbr\u003eh1 (tol)\u003c\/th\u003e\n      \u003cth\u003eWeld Proj.\u003cbr\u003eh2 (tol)\u003c\/th\u003e\n      \u003cth\u003eUnit Weight\u003cbr\u003e(g\/pc)\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\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e7.50\u003c\/td\u003e\n\u003ctd\u003e8.27\u003c\/td\u003e\n\u003ctd\u003e4.50\u003c\/td\u003e\n\u003ctd\u003e0.55 ±0.1\u003c\/td\u003e\n\u003ctd\u003e0.25 +0\/-0.1\u003c\/td\u003e\n\u003ctd\u003e~0.9\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\u003e3.50\u003c\/td\u003e\n\u003ctd\u003e9.00\u003c\/td\u003e\n\u003ctd\u003e9.91\u003c\/td\u003e\n\u003ctd\u003e6.00\u003c\/td\u003e\n\u003ctd\u003e0.65 ±0.1\u003c\/td\u003e\n\u003ctd\u003e0.35 +0\/-0.1\u003c\/td\u003e\n\u003ctd\u003e~1.6\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\u003e4.00\u003c\/td\u003e\n\u003ctd\u003e10.00\u003c\/td\u003e\n\u003ctd\u003e11.05\u003c\/td\u003e\n\u003ctd\u003e7.00\u003c\/td\u003e\n\u003ctd\u003e0.70 ±0.1\u003c\/td\u003e\n\u003ctd\u003e0.40 +0\/-0.1\u003c\/td\u003e\n\u003ctd\u003e~2.3\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\u003e5.00\u003c\/td\u003e\n\u003ctd\u003e11.00\u003c\/td\u003e\n\u003ctd\u003e12.12\u003c\/td\u003e\n\u003ctd\u003e8.00\u003c\/td\u003e\n\u003ctd\u003e0.75 ±0.15\u003c\/td\u003e\n\u003ctd\u003e0.50 +0\/-0.1\u003c\/td\u003e\n\u003ctd\u003e~3.7\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\u003e6.50\u003c\/td\u003e\n\u003ctd\u003e14.00\u003c\/td\u003e\n\u003ctd\u003e15.44\u003c\/td\u003e\n\u003ctd\u003e10.50\u003c\/td\u003e\n\u003ctd\u003e0.90 ±0.15\u003c\/td\u003e\n\u003ctd\u003e0.50 +0\/-0.15\u003c\/td\u003e\n\u003ctd\u003e~7.3\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\u003e8.00\u003c\/td\u003e\n\u003ctd\u003e17.00\u003c\/td\u003e\n\u003ctd\u003e18.72\u003c\/td\u003e\n\u003ctd\u003e12.50\u003c\/td\u003e\n\u003ctd\u003e1.15 ±0.2\u003c\/td\u003e\n\u003ctd\u003e0.65 +0\/-0.15\u003c\/td\u003e\n\u003ctd\u003e~13.8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e1.75\u003c\/td\u003e\n\u003ctd\u003e10.00\u003c\/td\u003e\n\u003ctd\u003e19.00\u003c\/td\u003e\n\u003ctd\u003e20.88\u003c\/td\u003e\n\u003ctd\u003e14.80\u003c\/td\u003e\n\u003ctd\u003e1.40 ±0.2\u003c\/td\u003e\n\u003ctd\u003e0.80 +0\/-0.2\u003c\/td\u003e\n\u003ctd\u003e~21.9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM14\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e10.00\u003c\/td\u003e\n\u003ctd\u003e19.00\u003c\/td\u003e\n\u003ctd\u003e20.88\u003c\/td\u003e\n\u003ctd\u003e14.80\u003c\/td\u003e\n\u003ctd\u003e1.40 ±0.2\u003c\/td\u003e\n\u003ctd\u003e1.00 +0\/-0.2\u003c\/td\u003e\n\u003ctd\u003e~24.1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e10.00\u003c\/td\u003e\n\u003ctd\u003e24.00\u003c\/td\u003e\n\u003ctd\u003e26.75\u003c\/td\u003e\n\u003ctd\u003e18.80\u003c\/td\u003e\n\u003ctd\u003e1.80 ±0.2\u003c\/td\u003e\n\u003ctd\u003e1.00 +0\/-0.2\u003c\/td\u003e\n\u003ctd\u003e~37.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.85em;color:#666;\"\u003e* Across Corners (e) calculated from s × 1.155. Unit weights are theoretical reference values; actual weights may vary ±5%. M14 has limited availability — higher MOQ applies.\u003c\/p\u003e\n\n\u003ch2\u003eSelection Guide\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;text-align:left;\"\u003e\n  \u003cthead style=\"background-color:#f2f2f2;\"\u003e\n    \u003ctr\u003e\n\u003cth\u003eParameter\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\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eDIN 929\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eQ195 Low Carbon Structural Steel (GB\/T 700)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003eBare (Uncoated \/ Mill Finish)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eISO Property Class\u003c\/td\u003e\n\u003ctd\u003eClass 4 (per ISO 898-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eMetric coarse thread (ISO 68-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eThread Tolerance\u003c\/td\u003e\n\u003ctd\u003e6H\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNut Height Tolerance\u003c\/td\u003e\n\u003ctd\u003eh14\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAcross Flats Tolerance\u003c\/td\u003e\n\u003ctd\u003eh13\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpigot Diameter Tolerance\u003c\/td\u003e\n\u003ctd\u003ed11\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWelding Projections\u003c\/td\u003e\n\u003ctd\u003e3 projections, symmetrically arranged\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWelding Method\u003c\/td\u003e\n\u003ctd\u003eResistance spot welding\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eThread Size Range\u003c\/td\u003e\n\u003ctd\u003eM3 – M16\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProof Load Stress\u003c\/td\u003e\n\u003ctd\u003e≥ 510 MPa (Class 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e≥ 400 MPa (Class 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003e≤ 188 HV (Class 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeldability\u003c\/td\u003e\n\u003ctd\u003eExcellent — lowest carbon equivalent in the DIN 929 range\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd\u003eLow (bare steel — post-process coating recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTypical Post-Process\u003c\/td\u003e\n\u003ctd\u003eE-coat, powder coat, paint, zinc plating (by customer)\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    \u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eBulk bag \/ box; custom packaging available\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eStandard Notes\u003c\/h2\u003e\n\u003cp\u003eDIN 929 specifies hexagon weld nuts with three welding projections on the bearing face. The spigot (pilot) locates the nut precisely on the workpiece prior to welding. Upon resistance welding, the projections collapse and fuse with the base material, creating a flush, permanent joint. Q195 is a GB\/T 700 low carbon structural steel with a maximum carbon content of 0.12%, giving it the lowest carbon equivalent of all DIN 929 weld nut materials. This translates to the best resistance welding consistency, the lowest risk of heat-affected zone (HAZ) cracking, and the highest ductility — at the cost of lower mechanical strength compared to 10B21 grades. ISO Class 4 is the appropriate property class for this material and is widely used in light-duty sheet-metal, HVAC, furniture, and consumer electronics applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN 929\u003c\/strong\u003e — Hexagon weld nuts, metric coarse thread\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Q195 low carbon structural steel (GB\/T 700); approximate equivalent to S185 (EN 10025), A36 (ASTM)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProperty Class:\u003c\/strong\u003e ISO Class 4 per ISO 898-2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface:\u003c\/strong\u003e Bare \/ uncoated mill finish — no plating, no coating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e Right-hand, metric coarse, tolerance class 6H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey advantage:\u003c\/strong\u003e Best weldability and lowest cost in the DIN 929 range; ideal for high-volume light-duty assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFull Grade Comparison — DIN 929 Weld Nuts by Strength Class\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;text-align:left;\"\u003e\n  \u003cthead style=\"background-color:#f2f2f2;\"\u003e\n    \u003ctr\u003e\n      \u003cth\u003eGrade\u003c\/th\u003e\n      \u003cth\u003eMaterial\u003c\/th\u003e\n      \u003cth\u003eISO Class\u003c\/th\u003e\n      \u003cth\u003eTensile Strength\u003c\/th\u003e\n      \u003cth\u003eWeldability\u003c\/th\u003e\n      \u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n      \u003cth\u003eTypical Application\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#fff8e1;\"\u003e\n\u003ctd\u003e\n\u003cstrong\u003eQ195 Bare (Class 4)\u003c\/strong\u003e ✓\u003c\/td\u003e\n\u003ctd\u003eLow carbon steel\u003c\/td\u003e\n\u003ctd\u003eClass 4\u003c\/td\u003e\n\u003ctd\u003e≥ 400 MPa\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eLight sheet-metal, HVAC, furniture, electronics enclosures\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10B21 Bare (Class 8)\u003c\/td\u003e\n\u003ctd\u003eBoron carbon steel\u003c\/td\u003e\n\u003ctd\u003eClass 8\u003c\/td\u003e\n\u003ctd\u003e≥ 800 MPa\u003c\/td\u003e\n\u003ctd\u003eVery Good\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eGeneral-purpose, appliance, light structural\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10B21 Bare (Class 10)\u003c\/td\u003e\n\u003ctd\u003eBoron carbon steel\u003c\/td\u003e\n\u003ctd\u003eClass 10\u003c\/td\u003e\n\u003ctd\u003e≥ 1040 MPa\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eAutomotive BIW, heavy structural\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA2 (SUS304)\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003ctd\u003e≥ 700 MPa\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eGeneral industrial, indoor\/outdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA4 (SUS316)\u003c\/td\u003e\n\u003ctd\u003eMarine stainless\u003c\/td\u003e\n\u003ctd\u003eA4-70\u003c\/td\u003e\n\u003ctd\u003e≥ 700 MPa\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eMarine, chemical, food-grade\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003cp\u003eDIN 929 Hex Weld Nuts — Q195 Low Carbon Steel, ISO Class 4, Bare actual product photos:\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%;text-align:center;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%;border:1px dashed #ccc;padding:40px 10px;color:#aaa;\"\u003e[ Photo 1 ]\u003c\/td\u003e\n      \u003ctd style=\"width:25%;border:1px dashed #ccc;padding:40px 10px;color:#aaa;\"\u003e[ Photo 2 ]\u003c\/td\u003e\n      \u003ctd style=\"width:25%;border:1px dashed #ccc;padding:40px 10px;color:#aaa;\"\u003e[ Photo 3 ]\u003c\/td\u003e\n      \u003ctd style=\"width:25%;border:1px dashed #ccc;padding:40px 10px;color:#aaa;\"\u003e[ Photo 4 ]\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eChemical Composition — Q195 Low Carbon Structural Steel (GB\/T 700)\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;text-align:center;\"\u003e\n  \u003cthead style=\"background-color:#f2f2f2;\"\u003e\n    \u003ctr\u003e\n      \u003cth\u003eGrade\u003c\/th\u003e\n\u003cth\u003eC (%)\u003c\/th\u003e\n\u003cth\u003eMn (%)\u003c\/th\u003e\n\u003cth\u003eP (%)\u003c\/th\u003e\n\u003cth\u003eS (%)\u003c\/th\u003e\n\u003cth\u003eSi (%)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eQ195\u003c\/td\u003e\n      \u003ctd\u003e≤ 0.12\u003c\/td\u003e\n      \u003ctd\u003e≤ 0.50\u003c\/td\u003e\n      \u003ctd\u003e≤ 0.035\u003c\/td\u003e\n      \u003ctd\u003e≤ 0.040\u003c\/td\u003e\n      \u003ctd\u003e≤ 0.30\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.85em;color:#666;\"\u003e* Q195 has the lowest carbon content (≤ 0.12%) of all DIN 929 weld nut materials, resulting in the best weldability and ductility. Approximate international equivalents: S185 (EN 10025-2), A36 (ASTM A36), SS330 (JIS G3101). No boron addition.\u003c\/p\u003e\n\n\u003ch2\u003eMechanical Properties — ISO Class 4 (ISO 898-2)\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;text-align:center;\"\u003e\n  \u003cthead style=\"background-color:#f2f2f2;\"\u003e\n    \u003ctr\u003e\n      \u003cth\u003eProperty Class\u003c\/th\u003e\n\u003cth\u003eProof Load Stress (MPa)\u003c\/th\u003e\n\u003cth\u003eTensile Strength (MPa)\u003c\/th\u003e\n\u003cth\u003eHardness (HV max)\u003c\/th\u003e\n\u003cth\u003eMin. Elongation\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eClass 4\u003c\/td\u003e\n\u003ctd\u003e≥ 510\u003c\/td\u003e\n\u003ctd\u003e≥ 400\u003c\/td\u003e\n\u003ctd\u003e≤ 188\u003c\/td\u003e\n\u003ctd\u003e≥ 22%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.85em;color:#666;\"\u003e* Class 4 offers the highest ductility (min. 22% elongation) of all carbon steel nut classes, ensuring excellent formability and resistance welding consistency. Maximum hardness ≤ 188 HV guarantees no risk of hydrogen embrittlement in plating processes.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose FULLERKREG DIN 929 Q195 Class 4 Weld Nuts?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e🏭 \u003cstrong\u003eFactory Direct\u003c\/strong\u003e — Manufactured in-house with full process control from raw material to finished part\u003c\/li\u003e\n  \u003cli\u003e💰 \u003cstrong\u003eMost Cost-Effective Grade\u003c\/strong\u003e — Q195 low carbon steel delivers the lowest material cost in the DIN 929 range without compromising weld quality\u003c\/li\u003e\n  \u003cli\u003e⚡ \u003cstrong\u003eBest-in-Class Weldability\u003c\/strong\u003e — Ultra-low carbon content (≤ 0.12%) ensures the most consistent, reliable resistance welding performance with minimal spatter and zero HAZ cracking risk\u003c\/li\u003e\n  \u003cli\u003e🛡️ \u003cstrong\u003eMaximum Ductility\u003c\/strong\u003e — ≥22% elongation provides excellent formability and impact resistance for light-duty assemblies\u003c\/li\u003e\n  \u003cli\u003e📐 \u003cstrong\u003eStrict DIN 929 Compliance\u003c\/strong\u003e — Every dimension and tolerance verified against the standard; no substitutions\u003c\/li\u003e\n  \u003cli\u003e🔬 \u003cstrong\u003eMaterial Certified\u003c\/strong\u003e — Mill test certificates (MTC) available; Q195 composition verified per GB\/T 700\u003c\/li\u003e\n  \u003cli\u003e🎨 \u003cstrong\u003eBare Finish — Post-Process Ready\u003c\/strong\u003e — Uncoated surface is ideal for e-coat, powder coat, paint, or zinc plating applied after welding; ≤188 HV hardness eliminates hydrogen embrittlement risk during acid pickling\u003c\/li\u003e\n  \u003cli\u003e📦 \u003cstrong\u003eBulk Wholesale Supply\u003c\/strong\u003e — MOQ-friendly pricing tiers; consistent lot quality for high-volume production lines\u003c\/li\u003e\n  \u003cli\u003e🚢 \u003cstrong\u003eGlobal Export Experience\u003c\/strong\u003e — Shipped worldwide with proper export documentation and packaging\u003c\/li\u003e\n  \u003cli\u003e💬 \u003cstrong\u003eTechnical Support\u003c\/strong\u003e — Engineering team available for application guidance, custom sizes, and special requirements\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"din929-4-m4","title":"M4-0.7 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -24000 Pcs per Carton","description":"\u003cp\u003e24\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768031343,"sku":"DIN929-4-M4","price":168.0,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m5","title":"M5-0.8 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -8000 Pcs per Carton","description":"\u003cp\u003e25\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768064111,"sku":"DIN929-4-M5","price":48.0,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m6","title":"M6-1.0 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -5000 Pcs per Carton","description":"\u003cp\u003e26\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768096879,"sku":"DIN929-4-M6","price":30.0,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m8","title":"M8-1.25 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -2000 Pcs per Carton","description":"\u003cp\u003e27\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768129647,"sku":"DIN929-4-M8","price":24.0,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m10","title":"M10-1.5 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -1200 Pcs per Carton","description":"\u003cp\u003e28\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768162415,"sku":"DIN929-4-M10","price":28.8,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m12","title":"M12-1.75 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -700 Pcs per Carton","description":"\u003cp\u003e29\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768195183,"sku":"DIN929-4-M12","price":23.8,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m14","title":"M14-2.0 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -150 Pcs per Carton","description":"\u003cp\u003e30\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768227951,"sku":"DIN929-4-M14","price":10.2,"currency_code":"USD","in_stock":true}]},{"product_id":"din929-4-m16","title":"M16-2.0 Weld Nuts (DIN 929) - Q195 Low Carbon Steel - ISO Class 4-Bare -350 Pcs per Carton","description":"\u003cp\u003e31\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44519768260719,"sku":"DIN929-4-M16","price":24.85,"currency_code":"USD","in_stock":true}]}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6317\/9375\/collections\/DIN_929_d5afcf21-9f67-431d-bbd5-4d541de329b3.webp?v=1770622062","url":"https:\/\/www.fullerkr.com\/collections\/din929-4.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}