{"title":"DIN 6798 Serrated Washer","description":"\u003ch1\u003eDIN 6798 Serrated Lock Washer — Complete Product Series\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 6798 serrated lock washers are manufactured to DIN 6798 standard in two serration types and a full range of materials and surface treatments. Form A (external serrated) features teeth on the outer diameter that bite into the substrate surface, providing maximum anti-loosening torque. Form J (internal serrated) features teeth on the inner diameter that bite into the fastener shank, preserving the outer substrate surface. Both types provide positive mechanical anti-loosening performance under vibration and dynamic loads. Select the form, material, and finish that matches your application below.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Variants — Browse by Form, Material \u0026amp; Finish\u003c\/h2\u003e\n\n\u003cp\u003e\u003ca href=\"\/collections\/din-6798a-a2-stainless-external-serrated\"\u003e\u003cstrong\u003eDIN 6798A External Serrated — A2 Stainless Steel (SUS304), Whitened \u0026amp; Passivated\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\nA2 stainless steel (SUS304) · Whitened \u0026amp; passivated · M3–M30 · External teeth · Non-magnetic · General corrosion resistance · Food-safe\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"\/collections\/din-6798a-a4-ss-external-serrated\"\u003e\u003cstrong\u003eDIN 6798A External Serrated — A4 Marine Stainless Steel (SUS316), Whitened \u0026amp; Passivated\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\nA4 stainless steel (SUS316) · Whitened \u0026amp; passivated · M3–M30 · External teeth · Mo 2–3% · Marine-grade · Superior chloride \u0026amp; seawater resistance\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"\/collections\/din-6798a-zinc-external-serrated-lock\"\u003e\u003cstrong\u003eDIN 6798A External Serrated — 65Mn Spring Steel, Zinc CR3\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n65Mn spring steel (GB\/T 1222) · Zinc CR3 electroplating · M3–M30 · External teeth · 430–510 HV · ≥72h NSS · RoHS compliant · Maximum anti-loosening torque\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"\/collections\/din-6798j-a2-stainless-internal-serrated\"\u003e\u003cstrong\u003eDIN 6798J Internal Serrated — A2 Stainless Steel (SUS304), Whitened \u0026amp; Passivated\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\nA2 stainless steel (SUS304) · Whitened \u0026amp; passivated · M3–M30 · Internal teeth · Non-magnetic · Outer surface preserved · Food-safe\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"\/collections\/din-6798j-zinc-internal-serrated-lock\"\u003e\u003cstrong\u003eDIN 6798J Internal Serrated — 65Mn Spring Steel, Zinc CR3\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\n65Mn spring steel (GB\/T 1222) · Zinc CR3 electroplating · M3–M30 · Internal teeth · 430–510 HV · ≥72h NSS · RoHS compliant · Outer surface preserved\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eHow to Choose the Right Type\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRequirement\u003c\/th\u003e\n\u003cth\u003eRecommended Form\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaximum anti-loosening performance\u003c\/td\u003e\n\u003ctd\u003eForm A (External) — teeth at largest radius\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOuter substrate surface must be preserved\u003c\/td\u003e\n\u003ctd\u003eForm J (Internal) — teeth bite into fastener\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMarine, offshore, seawater environment\u003c\/td\u003e\n\u003ctd\u003eA4 Stainless Steel (SUS316)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGeneral outdoor, food processing, fresh water\u003c\/td\u003e\n\u003ctd\u003eA2 Stainless Steel (SUS304)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHeavy industrial, outdoor or humid, high hardness\u003c\/td\u003e\n\u003ctd\u003e65Mn Steel, Zinc CR3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRoHS-compliant zinc finish required\u003c\/td\u003e\n\u003ctd\u003e65Mn Steel, Zinc CR3 (no Cr6+)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eForm A vs. Form J — Key Differences\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eForm A (External Serrated)\u003c\/th\u003e\n\u003cth\u003eForm J (Internal Serrated)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSerration location\u003c\/td\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003eInner diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBites into\u003c\/td\u003e\n\u003ctd\u003eSubstrate surface (under bolt head \/ nut)\u003c\/td\u003e\n\u003ctd\u003eFastener shank \/ bolt head underside\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOuter surface\u003c\/td\u003e\n\u003ctd\u003eMarked by teeth\u003c\/td\u003e\n\u003ctd\u003ePreserved — no marking\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAnti-loosening torque\u003c\/td\u003e\n\u003ctd\u003eMaximum — largest tooth radius\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eGeneral industrial assemblies\u003c\/td\u003e\n\u003ctd\u003eVisible or finished surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDIN 6798 Standard Overview\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 6798\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForms:\u003c\/strong\u003e Form A (External Serrated) · Form J (Internal Serrated) · Form V (Countersunk)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize range:\u003c\/strong\u003e M3 – M30\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-loosening mechanism:\u003c\/strong\u003e Mechanical tooth engagement — resists rotation under vibration and dynamic loads\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eAll grades RoHS \u0026amp; REACH compliant\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Photo Gallery\u003c\/h2\u003e\n\u003cp\u003eFULLERKREG DIN 6798 Serrated Lock Washers — product range overview:\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%;text-align:center;padding:12px\"\u003e[ Photo 1 ]\u003c\/td\u003e\n      \u003ctd style=\"width:25%;text-align:center;padding:12px\"\u003e[ Photo 2 ]\u003c\/td\u003e\n      \u003ctd style=\"width:25%;text-align:center;padding:12px\"\u003e[ Photo 3 ]\u003c\/td\u003e\n      \u003ctd style=\"width:25%;text-align:center;padding:12px\"\u003e[ Photo 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\u003cul\u003e\n  \u003cli\u003e🏭 \u003cstrong\u003eDirect manufacturer\u003c\/strong\u003e — factory in China, no middlemen\u003c\/li\u003e\n  \u003cli\u003e📐 \u003cstrong\u003eStrict DIN dimensional control\u003c\/strong\u003e — 100% inspection on critical dimensions and hardness\u003c\/li\u003e\n  \u003cli\u003e🌍 \u003cstrong\u003eGlobal export experience\u003c\/strong\u003e — serving distributors in Europe, North America, Southeast Asia\u003c\/li\u003e\n  \u003cli\u003e📦 \u003cstrong\u003eFlexible MOQ\u003c\/strong\u003e — small trial orders and large bulk shipments both welcome\u003c\/li\u003e\n  \u003cli\u003e📋 \u003cstrong\u003eFull documentation\u003c\/strong\u003e — material certs, hardness reports, RoHS declarations on request\u003c\/li\u003e\n  \u003cli\u003e⚡ \u003cstrong\u003eFast lead times\u003c\/strong\u003e — standard sizes in stock, ready to ship\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003eFULLERKREG Fasteners\u003c\/strong\u003e — Precision DIN Standard Fasteners, Direct from Manufacturer.\u003cbr\u003e\nFor wholesale inquiries, technical questions, or custom orders, please contact our sales team.\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/din-6798-serrated-washer.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}