{"title":"Ribbed Safety Lock Washer","description":"\u003ch1\u003eRibbed Safety Lock Washers (DIN 9250)\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG Ribbed Safety Lock Washers (also known as Schnorr washers, conical spring lock washers, or toothed conical washers) conform to \u003cstrong\u003eDIN 9250\u003c\/strong\u003e. The conical profile stores elastic energy under bolt load to maintain pre-load, while fine radial ribs on both bearing faces grip mating surfaces to prevent rotation and self-loosening - providing dual-action locking performance under vibration, thermal cycling, and dynamic loads.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in two duty series and multiple material\/surface treatment combinations to suit a wide range of industrial environments and load requirements.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eS Series - Regular Duty (DIN 9250 Type S)\u003c\/h2\u003e\n\u003cp\u003eStandard wall thickness and cone height. Thread range M1.6-M30. For general industrial assemblies and standard bolt loads.\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-a2-stainless-steel\"\u003e\u003cstrong\u003eS Series Regular Duty - Stainless Steel A2\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 A2 (SUS304 \/ 1.4301) · 表面钒化洗白 · M1.6-M30 · 耐腐蚀，适用于一般工业环境\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-a4-stainless-steel\"\u003e\u003cstrong\u003eS Series Regular Duty - Stainless Steel A4\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 A4 (SUS316 \/ 1.4401) · 表面钒化洗白 · M1.6-M30 · 含锢，超强耐海水、化工腐蚀性能\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-65mn-mechanically-zinc-plated\"\u003e\u003cstrong\u003eS Series Regular Duty - 65Mn Mechanically Zinc Plated\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 65Mn 弹簧钉 · 硬度 420-500 HV · 表面机械镀锌 · M1.6-M30 · 无氢脆风险，RoHS合规\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-65mn-black\"\u003e\u003cstrong\u003eS Series Regular Duty - 65Mn Black Oxide\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 65Mn 弹簧钉 · 硬度 420-500 HV · 表面发黑 · M1.6-M30 · 哑光黑色外观，室内干燥环境\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eVS Series - Heavy Duty (DIN 9250 Type VS)\u003c\/h2\u003e\n\u003cp\u003eIncreased wall thickness and greater cone height vs S Series. Thread range M5-M30. For heavy machinery, high-torque joints, and severe vibration environments.\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-a2-stainless-steel\"\u003e\u003cstrong\u003eVS Series Heavy Duty - Stainless Steel A2\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 A2 (SUS304 \/ 1.4301) · 表面钒化洗白 · M5-M30 · 重载弹力，适用于重型工业设备\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-a4-stainless-steel\"\u003e\u003cstrong\u003eVS Series Heavy Duty - Stainless Steel A4\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 A4 (SUS316 \/ 1.4401) · 表面钒化洗白 · M5-M30 · 重载 + 超强腐蚀，海洋、化工首选\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-65mn-mechanically-zinc-plated\"\u003e\u003cstrong\u003eVS Series Heavy Duty - 65Mn Mechanically Zinc Plated\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 65Mn 弹簧钉 · 硬度 420-500 HV · 表面机械镀锌 · M5-M30 · 最高预紧力保持，无氢脆\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-65mn-black\"\u003e\u003cstrong\u003eVS Series Heavy Duty - 65Mn Black Oxide\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n  材质 65Mn 弹簧钉 · 硬度 420-500 HV · 表面发黑 · M5-M30 · 重载锁紧 + 黑色外观\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSelection Guide - Series and Material\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\u003eSurface\u003c\/th\u003e\n\u003cth\u003eThread Range\u003c\/th\u003e\n\u003cth\u003eSpring Force\u003c\/th\u003e\n\u003cth\u003eCorrosion\u003c\/th\u003e\n\u003cth\u003eRoHS\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\/ribbed-safety-lock-washer-s-series-regular-duty-a2-stainless-steel\"\u003eS \/ A2\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003eSUS304\u003c\/td\u003e\n\u003ctd\u003ePassivated\u003c\/td\u003e\n\u003ctd\u003eM1.6-M30\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eGeneral industrial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-a4-stainless-steel\"\u003eS \/ A4\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003eSUS316\u003c\/td\u003e\n\u003ctd\u003ePassivated\u003c\/td\u003e\n\u003ctd\u003eM1.6-M30\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eMarine \/ chemical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-65mn-mechanically-zinc-plated\"\u003eS \/ 65Mn Mech. Zinc\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003e65Mn\u003c\/td\u003e\n\u003ctd\u003eMech. Zinc Cr3\u003c\/td\u003e\n\u003ctd\u003eM1.6-M30\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eHigh pre-load, RoHS supply chains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-s-series-regular-duty-65mn-black\"\u003eS \/ 65Mn Black\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003e65Mn\u003c\/td\u003e\n\u003ctd\u003eBlack Oxide\u003c\/td\u003e\n\u003ctd\u003eM1.6-M30\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eBasic\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eDry indoor, black finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-a2-stainless-steel\"\u003eVS \/ A2\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003eSUS304\u003c\/td\u003e\n\u003ctd\u003ePassivated\u003c\/td\u003e\n\u003ctd\u003eM5-M30\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eHeavy machinery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-a4-stainless-steel\"\u003eVS \/ A4\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003eSUS316\u003c\/td\u003e\n\u003ctd\u003ePassivated\u003c\/td\u003e\n\u003ctd\u003eM5-M30\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eMarine heavy-duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-65mn-mechanically-zinc-plated\"\u003eVS \/ 65Mn Mech. Zinc\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003e65Mn\u003c\/td\u003e\n\u003ctd\u003eMech. Zinc Cr3\u003c\/td\u003e\n\u003ctd\u003eM5-M30\u003c\/td\u003e\n\u003ctd\u003eMaximum\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eMax pre-load, no H2 embrittlement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd\u003e\u003ca href=\"\/collections\/ribbed-safety-lock-washer-vs-series-heavy-duty-65mn-black\"\u003eVS \/ 65Mn Black\u003c\/a\u003e\u003c\/td\u003e\n  \u003ctd\u003e65Mn\u003c\/td\u003e\n\u003ctd\u003eBlack Oxide\u003c\/td\u003e\n\u003ctd\u003eM5-M30\u003c\/td\u003e\n\u003ctd\u003eMaximum\u003c\/td\u003e\n\u003ctd\u003eBasic\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eMax pre-load, black finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eAbout DIN 9250 Ribbed Safety Lock Washers\u003c\/h2\u003e\n\n\u003cp\u003eDIN 9250 specifies Schnorr-type ribbed safety lock washers in two series:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType S\u003c\/strong\u003e - Regular Duty: standard wall thickness and cone height, suitable for general industrial applications from M1.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType VS\u003c\/strong\u003e - Heavy Duty: increased wall thickness and greater cone height, delivering higher spring force for heavy machinery and high-torque joints from M5\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBoth series feature fine radial ribs on both bearing faces. The dual-action locking principle combines conical spring pre-load retention with mechanical rib grip to prevent loosening under vibration, thermal cycling, and dynamic loads. Washers are reusable if undamaged and can be stacked to adjust spring force and deflection characteristics.\u003c\/p\u003e\n\n\u003cp\u003eDIN 9250 is functionally cross-referenced with \u003cstrong\u003eNFE 25-511\u003c\/strong\u003e (French standard) and the Schnorr original specification.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003cp\u003eDIN 9250 Ribbed Safety Lock Washers - FULLERKREG\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 S and VS Series dimensional conformance, with NFE 25-511 cross-reference support\u003cbr\u003e\n🔬 \u003cstrong\u003eMaterial Traceability\u003c\/strong\u003e - EN 10204 3.1 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 series selection, stacking calculations, and custom specifications\u003cbr\u003e\n⚙️ \u003cstrong\u003eBroad Range\u003c\/strong\u003e - Full DIN 9250 range: S and VS Series across A2, A4 stainless steel and 65Mn spring steel\n\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/ribbed-safety-lock-washer.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}