{"title":"DIN 980V Top Lock Nuts, Class 10, Alloy Steel, Zinc Finish, Coarse Thread","description":"\u003ch1\u003eDIN 980V All-Metal Prevailing Torque Lock Nut — Class 10, Alloy Steel 10B21, Zinc Cr3 Finish\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 980V Class 10 all-metal prevailing torque hex lock nuts are manufactured from boron alloy steel 10B21 with Zinc Cr3 (trivalent chromate) surface treatment. As the highest standard grade in the DIN 980V series, Class 10 nuts deliver superior proof load capacity and prevailing torque performance, making them the preferred choice for critical structural joints, heavy machinery, and high-vibration environments. The top-locking (Volcano-type) design deforms the top threads to generate reliable locking torque without any nylon insert — fully compliant with DIN 980V and ASME B18.16.3M.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#1a1a2e;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eDIN 980V \/ ASME B18.16.3M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAll-Metal Prevailing Torque Hex Lock Nut (Top-Locking \/ Volcano Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAlloy Steel 10B21 (Boron Steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eGrade \/ Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eClass 10 \/ 10.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSurface Treatment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eZinc Cr3 (Electrolytic Zinc + Trivalent Chromate Passivation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eThread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMetric Coarse Thread (6H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSize Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eM6 – M20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eHardness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eRockwell C32–C39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eRoHS Compliant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eYes (Cr3 trivalent, hexavalent-chromium free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eFULLERKREG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eDimensional Data (DIN 980V)\u003c\/h2\u003e\n\u003cp\u003eAll dimensions in millimeters (mm). Unit weight is approximate reference value based on alloy steel density ≈ 7.85 g\/cm³.\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;text-align:center;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#1a1a2e;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eThread Pitch (mm)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003es Max (mm)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003es Min (mm)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003ee Min (mm)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003em Max (mm)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003em Min (mm)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eUnit Weight (g\/pc)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM6\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e1.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e10.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e9.78\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e11.05\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e5.7\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e4.9\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≈2.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM8\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e1.25\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e13.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e12.73\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e14.38\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e7.5\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e6.6\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≈5.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM10\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e1.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e17.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e16.73\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e18.90\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e9.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e8.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≈10.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM12\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e1.75\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e19.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e18.67\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e21.10\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e11.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e10.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≈17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM16\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e2.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e24.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e23.67\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e26.75\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e14.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e13.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≈35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM20\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e2.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e30.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e29.16\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e32.95\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e18.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e16.9\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≈70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:12px;color:#666;\"\u003e* s = Width Across Flats  |  e = Width Across Corners  |  m = Nut Height  |  Class 10 nuts have greater height (m) than Grade 8 for higher proof load. Unit weight values are approximate for reference only.\u003c\/p\u003e\n\n\u003ch2\u003ePrevailing Torque Requirements (DIN 980V — Class 10)\u003c\/h2\u003e\n\u003cp\u003eClass 10 nuts generate higher prevailing torque than Grade 8 due to greater nut height and harder material. Values per DIN 980V, measured on 5th engagement of standard test bolt.\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;text-align:center;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#1a1a2e;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eMin Prevailing Torque (N·m)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eMax Prevailing Torque (N·m)\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eMin Proof Load (kN)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM6\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e0.8\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e4.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM8\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e1.5\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e8.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e25.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM10\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e2.5\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e13.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e40.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM12\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e4.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e20.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e59.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM16\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e8.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e40.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e110.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eM20\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e13.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e65.0\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e174.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eMaterial \u0026amp; Mechanical Properties\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#1a1a2e;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eProperty\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAlloy Steel 10B21 (Boron-added medium-carbon steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eGrade \/ Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eClass 10 \/ 10.0 — highest DIN 980V strength class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eTensile Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e≥ 1000 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eProof Load Stress\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e900 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eHardness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eRockwell C32–C39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eHeat Treatment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eQuenched \u0026amp; Tempered — mandatory for Class 10 per DIN 980V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eChemical Composition (10B21)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eC 0.18–0.23%, Mn 0.80–1.10%, B 0.0005–0.003%, S ≤ 0.035%, P ≤ 0.035%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eSurface Treatment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eZinc Cr3 — electrolytic zinc plating + trivalent chromate passivation (RoHS compliant, Cr6+ free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eCorrosion Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e≥ 72 hrs neutral salt spray (NSS) per ISO 9227\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e-50°C to +300°C (all-metal, no nylon insert)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eClass 10 vs Grade 8 — Key Differences\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;text-align:center;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#1a1a2e;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eGrade 8\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eClass 10 ★\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e35K Carbon Steel\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e\u003cstrong\u003e10B21 Boron Alloy Steel\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eTensile Strength\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e≥ 800 MPa\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e\u003cstrong\u003e≥ 1000 MPa\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eProof Load Stress\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e600 MPa\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e\u003cstrong\u003e900 MPa\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eC26–C36\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e\u003cstrong\u003eC32–C39\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eNut Height (m) M12\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e10.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e\u003cstrong\u003e11.0 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003eRecommended Bolt Grade\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e8.8\u003c\/td\u003e\n\u003ctd style=\"padding:7px;border:1px solid #ccc;\"\u003e\u003cstrong\u003e10.9 or higher\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSelection Guide\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#1a1a2e;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eApplication Scenario\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eRecommended Size\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;\"\u003eKey Reason\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHeavy-Duty Automotive (engine, drivetrain)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eM8 – M16\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eClass 10 high proof load + all-metal locking for extreme vibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eConstruction \u0026amp; Steel Structures\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eM12 – M20\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eSuperior tensile strength for structural integrity under dynamic loads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMining \u0026amp; Heavy Equipment\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eM16 – M20\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHighest proof load capacity in DIN 980V range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eWind Turbine \u0026amp; Energy Infrastructure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eM12 – M20\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFatigue-resistant boron steel with reliable prevailing torque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHigh-Temperature Industrial Joints\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eM6 – M20\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAll-metal design rated to 300°C — no nylon degradation risk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eStandard Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN 980V\u003c\/strong\u003e specifies the Volcano-type (top-locking) all-metal prevailing torque hex nut for metric coarse threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass 10\u003c\/strong\u003e is the highest strength class in DIN 980V — mandatory quench \u0026amp; temper heat treatment required.\u003c\/li\u003e\n\u003cli\u003eLocking achieved by controlled deformation of top 2–3 threads; no insert required. Nuts are reusable but replace if prevailing torque falls below minimum.\u003c\/li\u003e\n\u003cli\u003eThread tolerance: 6H per ISO 965-1.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10B21 boron steel\u003c\/strong\u003e provides superior hardenability vs plain carbon steel at equivalent carbon content.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc Cr3\u003c\/strong\u003e coating is RoHS compliant — free of hexavalent chromium (Cr6+), meeting EU ELV and RoHS directives.\u003c\/li\u003e\n\u003cli\u003eRecommended mating bolt grade: \u003cstrong\u003e10.9 or higher\u003c\/strong\u003e. Do not pair with Grade 8.8 bolts in critical joints.\u003c\/li\u003e\n\u003cli\u003eDo not use with stainless steel bolts — galvanic corrosion risk in wet environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003cp\u003eDIN 980V Class 10 Alloy Steel Zinc Lock Nut — actual product photos:\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:25%;padding:10px;text-align:center;border:1px solid #eee;\"\u003e[Photo 1]\u003c\/td\u003e\n\u003ctd style=\"width:25%;padding:10px;text-align:center;border:1px solid #eee;\"\u003e[Photo 2]\u003c\/td\u003e\n\u003ctd style=\"width:25%;padding:10px;text-align:center;border:1px solid #eee;\"\u003e[Photo 3]\u003c\/td\u003e\n\u003ctd style=\"width:25%;padding:10px;text-align:center;border:1px solid #eee;\"\u003e[Photo 4]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Choose FULLERKREG\u003c\/h2\u003e\n\u003cp\u003e\n🏭 \u003cstrong\u003eDirect Manufacturer\u003c\/strong\u003e — Factory-direct pricing with full production traceability.\u003cbr\u003e\n📐 \u003cstrong\u003eStrict Dimensional Control\u003c\/strong\u003e — 100% inspection against DIN 980V Class 10 tolerances.\u003cbr\u003e\n🔬 \u003cstrong\u003eMaterial Certification\u003c\/strong\u003e — Mill test reports, hardness certificates, heat treatment records, and RoHS declarations available on request.\u003cbr\u003e\n🛡️ \u003cstrong\u003eSalt Spray Tested\u003c\/strong\u003e — Zinc Cr3 coating verified per ISO 9227 neutral salt spray test.\u003cbr\u003e\n📦 \u003cstrong\u003eFlexible MOQ \u0026amp; Packaging\u003c\/strong\u003e — Bulk bags, boxes, or custom retail packaging available.\u003cbr\u003e\n🚢 \u003cstrong\u003eGlobal Shipping\u003c\/strong\u003e — FBA-ready export packaging, direct China-to-warehouse shipping.\u003cbr\u003e\n⚙️ \u003cstrong\u003eOEM Services\u003c\/strong\u003e — Custom marking, packaging, and certification documentation supported.\n\u003c\/p\u003e","products":[{"product_id":"din-980v-10zn-m10","title":"M10-1.5 DIN 980V - TOP LOCK NUTS - CLASS 10 - ZINC -2400 Pcs per Carton","description":"\u003cp\u003e28\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44212597391471,"sku":"DIN 980V-10Zn-M10","price":72.0,"currency_code":"USD","in_stock":true}]},{"product_id":"din-980v-10zn-m12","title":"M12-1.75 DIN 980V - TOP LOCK NUTS - CLASS 10 - ZINC -1800 Pcs per Carton","description":"\u003cp\u003e29\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44212600569967,"sku":"DIN 980V-10Zn-M12","price":79.2,"currency_code":"USD","in_stock":true}]},{"product_id":"din-980v-10zn-m14","title":"M14-2.0 DIN 980V - TOP LOCK NUTS - CLASS 10 - ZINC -1200 Pcs per Carton","description":"\u003cp\u003e30\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44212600602735,"sku":"DIN 980V-10Zn-M14","price":80.4,"currency_code":"USD","in_stock":true}]},{"product_id":"din-980v-10zn-m16","title":"M16-2.0 DIN 980V - TOP LOCK NUTS - CLASS 10 - ZINC -720 Pcs per Carton","description":"\u003cp\u003e31\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44212603781231,"sku":"DIN 980V-10Zn-M16","price":65.52,"currency_code":"USD","in_stock":true}]},{"product_id":"din-980v-10zn-m20","title":"M20-2.5 DIN 980V - TOP LOCK NUTS - CLASS 10 - ZINC -360 Pcs per Carton","description":"\u003cp\u003e32\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44212603813999,"sku":"DIN 980V-10Zn-M20","price":61.2,"currency_code":"USD","in_stock":true}]},{"product_id":"din-980v-10zn-m24","title":"M24-3.0 DIN 980V - TOP LOCK NUTS - CLASS 10 - ZINC -210 Pcs per Carton","description":"\u003cp\u003e33\u003c\/p\u003e","brand":"Fullerkreg Fasteners","offers":[{"title":"Default Title","offer_id":44212606992495,"sku":"DIN 980V-10Zn-M24","price":75.39,"currency_code":"USD","in_stock":true}]}],"url":"https:\/\/www.fullerkr.com\/collections\/din980v-10zn.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}