{"title":"Ribbed Safety Lock Washer S Series Regular Duty 65Mn Mechanically Zinc Plated","description":"\u003ch1\u003eRibbed Safety Lock Washer S Series - Regular Duty | 65Mn Spring Steel | Mechanically Zinc Plated\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG Ribbed Safety Lock Washers S Series (Regular Duty) in \u003cstrong\u003e65Mn Spring Steel\u003c\/strong\u003e with \u003cstrong\u003eMechanical Zinc Plating\u003c\/strong\u003e conform to \u003cstrong\u003eDIN 9250 Type S\u003c\/strong\u003e. Mechanical zinc plating is a cold-process coating that applies zinc powder to the surface without heat or electrical current, eliminating hydrogen embrittlement risk - making it the preferred surface treatment for high-hardness spring steel washers (420-500 HV) where electroplating could cause delayed fracture.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 9250 Type S (Schnorr-type ribbed safety lock washer, Regular Duty)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e S - Regular Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 65Mn Spring Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Treatment:\u003c\/strong\u003e Mechanically Zinc Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Range:\u003c\/strong\u003e M1.6 - M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerration:\u003c\/strong\u003e Fine radial ribs on both top and bottom faces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Anti-loosening, vibration resistance, elastic pre-load retention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e Schnorr washer, conical spring washer, Belleville lock washer, toothed conical washer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDimensional Data - DIN 9250 Type S Regular Duty (65Mn Mechanically Zinc Plated)\u003c\/h2\u003e\n\u003cp\u003eAll dimensions in \u003cstrong\u003emm\u003c\/strong\u003e. Data per DIN 9250 Type S standard.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003cth\u003eInner Dia. d1\u003c\/th\u003e\n\u003cth\u003eOuter Dia. d2\u003c\/th\u003e\n\u003cth\u003eThickness s\u003c\/th\u003e\n\u003cth\u003eHeight h Min\u003c\/th\u003e\n\u003cth\u003eHeight h Max\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eM1.6\u003c\/td\u003e\n\u003ctd\u003e1.7\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM2\u003c\/td\u003e\n\u003ctd\u003e2.2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM2.5\u003c\/td\u003e\n\u003ctd\u003e2.7\u003c\/td\u003e\n\u003ctd\u003e4.8\u003c\/td\u003e\n\u003ctd\u003e0.45\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003ctd\u003e5.5\u003c\/td\u003e\n\u003ctd\u003e0.45\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM3.5\u003c\/td\u003e\n\u003ctd\u003e3.7\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e0.45\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e0.9\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\u003e7\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003ctd\u003e1.0\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\u003e9\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1.1\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\u003e10\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM6.35\u003c\/td\u003e\n\u003ctd\u003e6.7\u003c\/td\u003e\n\u003ctd\u003e9.5\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM7\u003c\/td\u003e\n\u003ctd\u003e7.4\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e1.3\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\u003e13\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003ctd\u003e1.4\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\u003e16\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM11\u003c\/td\u003e\n\u003ctd\u003e11.6\u003c\/td\u003e\n\u003ctd\u003e15.5\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003ctd\u003e1.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM12.7\u003c\/td\u003e\n\u003ctd\u003e13.7\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003ctd\u003e1.7\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM14\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e1.9\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e2.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM18\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e2.2\u003c\/td\u003e\n\u003ctd\u003e2.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM20\u003c\/td\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e2.3\u003c\/td\u003e\n\u003ctd\u003e2.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM22\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e2.4\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM24\u003c\/td\u003e\n\u003ctd\u003e25.6\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003ctd\u003e2.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM25.4\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e2.7\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM27\u003c\/td\u003e\n\u003ctd\u003e28.6\u003c\/td\u003e\n\u003ctd\u003e39\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e2.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM30\u003c\/td\u003e\n\u003ctd\u003e31.6\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e3.1\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Mechanical zinc plating thickness is typically 5-25 microns. Actual installed dimensions may vary slightly. Confirm with FULLERKREG technical team for tight-tolerance applications. For sizes M33 and above, contact FULLERKREG for availability.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSurface Treatment - Mechanical Zinc Plating Explained\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eMechanical Zinc Plating\u003c\/strong\u003e (also known as mechanical galvanizing or peen plating) is a cold-process coating method that tumbles parts with zinc powder, glass beads, and chemical promoters to mechanically bond zinc to the steel surface. Unlike electroplating, no electrical current or heat is used.\u003c\/p\u003e\n\n\u003cp\u003eKey advantages for high-hardness spring steel components:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eNo hydrogen embrittlement\u003c\/strong\u003e - cold process eliminates the hydrogen absorption risk associated with electroplating; critical for 65Mn spring steel at 420-500 HV\u003c\/li\u003e\n\u003cli\u003e🌐 \u003cstrong\u003eUniform coating\u003c\/strong\u003e - consistent zinc layer on all surfaces including recesses, threads, and serrations\u003c\/li\u003e\n\u003cli\u003e📐 \u003cstrong\u003eControlled thickness\u003c\/strong\u003e - typically 5-25 microns; predictable dimensional impact\u003c\/li\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eGood corrosion resistance\u003c\/strong\u003e - zinc sacrificial protection; typically 96-200 hours NSS per ISO 9227 depending on passivation\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e - available with Cr3 passivation (no hexavalent chromium)\u003c\/li\u003e\n\u003cli\u003e🏭 \u003cstrong\u003eSuitable for bulk production\u003c\/strong\u003e - batch process ideal for high-volume fastener coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMechanical Zinc Plating vs Electroplating - Why It Matters for Spring Steel\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eMechanical Zinc Plating (This Page)\u003c\/th\u003e\n\u003cth\u003eElectroplating (Zinc Cr3 \/ Yellow)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcess\u003c\/td\u003e\n\u003ctd\u003eCold mechanical tumbling\u003c\/td\u003e\n\u003ctd\u003eElectrical current in acid bath\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHydrogen Embrittlement Risk\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003ePresent (requires baking relief)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitability for High-Hardness Steel\u003c\/td\u003e\n\u003ctd\u003eIdeal (420-500 HV)\u003c\/td\u003e\n\u003ctd\u003eRisk of delayed fracture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating Uniformity\u003c\/td\u003e\n\u003ctd\u003eExcellent on all surfaces\u003c\/td\u003e\n\u003ctd\u003eGood, may vary on recesses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness Control\u003c\/td\u003e\n\u003ctd\u003e5-25 microns\u003c\/td\u003e\n\u003ctd\u003e5-12 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd\u003eGood (96-200h NSS)\u003c\/td\u003e\n\u003ctd\u003eGood-Superior (120-200h NSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003ctd\u003eYes (Cr3 passivation)\u003c\/td\u003e\n\u003ctd\u003eYes (Cr3) \/ No (Cr6 Yellow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMaterial Grade Comparison\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003e65Mn Mech. Zinc (This Page)\u003c\/th\u003e\n\u003cth\u003eA2 Stainless\u003c\/th\u003e\n\u003cth\u003eA4 Stainless\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003e420-500 HV\u003c\/td\u003e\n\u003ctd\u003e~200-300 HV\u003c\/td\u003e\n\u003ctd\u003e~200-300 HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring-back Force\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-load Retention\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd\u003eGood (zinc protected)\u003c\/td\u003e\n\u003ctd\u003eGood (passivated)\u003c\/td\u003e\n\u003ctd\u003eExcellent (passivated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH2 Embrittlement Risk\u003c\/td\u003e\n\u003ctd\u003eNone (mech. process)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\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\u003eSelection Guide - S Series vs VS Series\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003cth\u003eDuty\u003c\/th\u003e\n\u003cth\u003eWall Thickness\u003c\/th\u003e\n\u003cth\u003eCone Height\u003c\/th\u003e\n\u003cth\u003eSpring Force\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\u003eS (this page)\u003c\/td\u003e\n\u003ctd\u003eRegular Duty\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eMedium-High\u003c\/td\u003e\n\u003ctd\u003eGeneral industrial, standard bolt loads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVS\u003c\/td\u003e\n\u003ctd\u003eHeavy Duty\u003c\/td\u003e\n\u003ctd\u003eThicker\u003c\/td\u003e\n\u003ctd\u003eHigher\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eHeavy machinery, high pre-load, severe vibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\n\u003cp\u003eThe S Series washer operates on two simultaneous locking mechanisms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e🔩 \u003cstrong\u003eConical spring action\u003c\/strong\u003e - cone profile stores elastic energy under bolt load, pushing back to maintain clamp force as the bolt tends to loosen.\u003c\/li\u003e\n\u003cli\u003e🔒 \u003cstrong\u003eRadial rib grip\u003c\/strong\u003e - fine ribs on both faces bite into mating surfaces, creating mechanical resistance to rotation in both directions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStack in the \u003cstrong\u003esame direction\u003c\/strong\u003e to multiply spring force, or \u003cstrong\u003eback-to-back\u003c\/strong\u003e to increase deflection range.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eStandard and Compliance\u003c\/h2\u003e\n\n\u003cp\u003eDIN 9250 Type S (Regular Duty), cross-referenced with NFE 25-511 and Schnorr original specification. FULLERKREG washers are manufactured to full DIN 9250 Type S dimensional compliance. Certification available on request for bulk orders.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMaterial and Surface Specification\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\u003e65Mn Spring Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003e420-500 HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003eMechanically Zinc Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlating Thickness\u003c\/td\u003e\n\u003ctd\u003e5-25 microns (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalt Spray Resistance\u003c\/td\u003e\n\u003ctd\u003e96-200 hours NSS (ISO 9227)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHydrogen Embrittlement\u003c\/td\u003e\n\u003ctd\u003eNone (cold process)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-40 to +120 degrees C\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\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e🔩 \u003cstrong\u003eHigh hardness 420-500 HV\u003c\/strong\u003e - superior spring-back force vs stainless steel\u003c\/li\u003e\n\u003cli\u003e🔒 \u003cstrong\u003eDual locking mechanism\u003c\/strong\u003e - conical spring + radial rib grip on both faces\u003c\/li\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eNo hydrogen embrittlement\u003c\/strong\u003e - cold mechanical process; safe for high-hardness spring steel\u003c\/li\u003e\n\u003cli\u003e🌐 \u003cstrong\u003eUniform zinc coating\u003c\/strong\u003e - consistent protection on all surfaces including serrations\u003c\/li\u003e\n\u003cli\u003e🔄 \u003cstrong\u003eReusable\u003c\/strong\u003e - retains locking strength if undamaged\u003c\/li\u003e\n\u003cli\u003e🔀 \u003cstrong\u003eStackable\u003c\/strong\u003e - same-direction for higher force; back-to-back for deflection\u003c\/li\u003e\n\u003cli\u003e🏭 \u003cstrong\u003eBulk supply ready\u003c\/strong\u003e - bags, boxes, custom packaging available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eAutomotive chassis, suspension, and powertrain assemblies\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery and heavy equipment subject to vibration\u003c\/li\u003e\n\u003cli\u003eConstruction steel structures and prefabricated buildings\u003c\/li\u003e\n\u003cli\u003eAgricultural and off-highway equipment\u003c\/li\u003e\n\u003cli\u003eElectrical cabinets and control panels\u003c\/li\u003e\n\u003cli\u003eRail and transportation equipment\u003c\/li\u003e\n\u003cli\u003eHigh-strength bolted joints requiring hydrogen embrittlement-free coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003cp\u003eRibbed Safety Lock Washer S Series Regular Duty - 65Mn \/ Mechanically Zinc Plated\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[ Image 1 ]\u003c\/td\u003e\n\u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[ Image 2 ]\u003c\/td\u003e\n\u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[ Image 3 ]\u003c\/td\u003e\n\u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[ Image 4 ]\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\n🏆 \u003cstrong\u003eStandard Compliance\u003c\/strong\u003e - Full DIN 9250 Type S conformance, NFE 25-511 cross-reference support\u003cbr\u003e\n🔬 \u003cstrong\u003eMaterial Traceability\u003c\/strong\u003e - 65Mn spring steel mill certificates and plating reports available on request\u003cbr\u003e\n📦 \u003cstrong\u003eFlexible MOQ\u003c\/strong\u003e - Small batch samples to full production quantities; custom packaging available\u003cbr\u003e\n🌍 \u003cstrong\u003eGlobal Shipping\u003c\/strong\u003e - Reliable export logistics to Europe, North America, Southeast Asia, and beyond\u003cbr\u003e\n💬 \u003cstrong\u003eTechnical Support\u003c\/strong\u003e - Engineering team available for selection guidance and stacking calculations\u003cbr\u003e\n⚙️ \u003cstrong\u003eBroad Range\u003c\/strong\u003e - S and VS Series in A2, A4 stainless steel and 65Mn spring steel grades\n\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-65mn-mechanically-zinc-plated.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}