{"title":"DIN 128A Lock Washer Spring – A2 Stainless","description":"\u003ch1\u003eDIN 128A Curved Spring Lock Washer — A2 Stainless Steel (SUS304), Whitened \u0026amp; Passivated\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 128A curved spring lock washers are manufactured to DIN 128 Type A standard in A2 stainless steel (SUS304 \/ 1.4301 \/ 0Cr18Ni9) with a whitened and passivated surface finish. DIN 128 Type A is a curved (single-coil) spring washer that generates axial spring force through its curved profile, providing anti-loosening performance in bolted assemblies. Unlike the helical split design of DIN 127, the curved profile of DIN 128A distributes load more evenly and is particularly suited for use with cheese head screws (DIN 84) and pan head screws. A2 stainless steel provides excellent general corrosion resistance, non-magnetic properties, and food-safe compliance.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 128 Type A (Curved Spring Lock Washer)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A2 Stainless Steel (SUS304 \/ 1.4301 \/ 0Cr18Ni9)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Treatment:\u003c\/strong\u003e Whitened \u0026amp; Passivated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize Range:\u003c\/strong\u003e M2 – M36\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Type A — Curved (single-coil, not helical split)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Axial spring force via curved profile — anti-loosening, load distribution\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eNon-magnetic, non-sparking\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eRoHS \u0026amp; REACH Compliant\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDimensional Specifications — DIN 128 Type A (Curved), A2 Stainless\u003c\/h2\u003e\n\u003cp\u003eAll dimensions in millimeters (mm). Per DIN 128 Type A.\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eNominal Size\u003c\/th\u003e\n      \u003cth\u003eFor Bolt\u003c\/th\u003e\n      \u003cth\u003ed1 min\u003c\/th\u003e\n      \u003cth\u003ed2 max\u003c\/th\u003e\n      \u003cth\u003eh min\u003c\/th\u003e\n      \u003cth\u003eh max\u003c\/th\u003e\n      \u003cth\u003es (thickness)\u003c\/th\u003e\n      \u003cth\u003eb (width)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eM2\u003c\/td\u003e\n\u003ctd\u003e2.1\u003c\/td\u003e\n\u003ctd\u003e4.4\u003c\/td\u003e\n\u003ctd\u003e0.70\u003c\/td\u003e\n\u003ctd\u003e1.10\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2.3\u003c\/td\u003e\n\u003ctd\u003eM2.3\u003c\/td\u003e\n\u003ctd\u003e2.4\u003c\/td\u003e\n\u003ctd\u003e4.9\u003c\/td\u003e\n\u003ctd\u003e0.90\u003c\/td\u003e\n\u003ctd\u003e1.10\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003eM2.5\u003c\/td\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003ctd\u003e0.90\u003c\/td\u003e\n\u003ctd\u003e1.10\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003ctd\u003eM2.6\u003c\/td\u003e\n\u003ctd\u003e2.7\u003c\/td\u003e\n\u003ctd\u003e5.2\u003c\/td\u003e\n\u003ctd\u003e0.90\u003c\/td\u003e\n\u003ctd\u003e1.10\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e3.1\u003c\/td\u003e\n\u003ctd\u003e6.2\u003c\/td\u003e\n\u003ctd\u003e1.10\u003c\/td\u003e\n\u003ctd\u003e1.30\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003eM3.5\u003c\/td\u003e\n\u003ctd\u003e3.6\u003c\/td\u003e\n\u003ctd\u003e6.7\u003c\/td\u003e\n\u003ctd\u003e1.20\u003c\/td\u003e\n\u003ctd\u003e1.30\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e4.1\u003c\/td\u003e\n\u003ctd\u003e7.6\u003c\/td\u003e\n\u003ctd\u003e1.20\u003c\/td\u003e\n\u003ctd\u003e1.40\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003ctd\u003e9.2\u003c\/td\u003e\n\u003ctd\u003e1.50\u003c\/td\u003e\n\u003ctd\u003e1.70\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e6.1\u003c\/td\u003e\n\u003ctd\u003e11.8\u003c\/td\u003e\n\u003ctd\u003e2.00\u003c\/td\u003e\n\u003ctd\u003e2.20\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e8.1\u003c\/td\u003e\n\u003ctd\u003e14.8\u003c\/td\u003e\n\u003ctd\u003e2.45\u003c\/td\u003e\n\u003ctd\u003e2.75\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e10.2\u003c\/td\u003e\n\u003ctd\u003e18.1\u003c\/td\u003e\n\u003ctd\u003e2.85\u003c\/td\u003e\n\u003ctd\u003e3.35\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e12.2\u003c\/td\u003e\n\u003ctd\u003e21.1\u003c\/td\u003e\n\u003ctd\u003e3.35\u003c\/td\u003e\n\u003ctd\u003e3.65\u003c\/td\u003e\n\u003ctd\u003e2.1\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003eM14\u003c\/td\u003e\n\u003ctd\u003e14.2\u003c\/td\u003e\n\u003ctd\u003e24.1\u003c\/td\u003e\n\u003ctd\u003e3.90\u003c\/td\u003e\n\u003ctd\u003e4.30\u003c\/td\u003e\n\u003ctd\u003e2.4\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e16.2\u003c\/td\u003e\n\u003ctd\u003e27.4\u003c\/td\u003e\n\u003ctd\u003e4.50\u003c\/td\u003e\n\u003ctd\u003e5.10\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003eM18\u003c\/td\u003e\n\u003ctd\u003e18.2\u003c\/td\u003e\n\u003ctd\u003e26.4\u003c\/td\u003e\n\u003ctd\u003e4.50\u003c\/td\u003e\n\u003ctd\u003e5.10\u003c\/td\u003e\n\u003ctd\u003e2.8\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003eM20\u003c\/td\u003e\n\u003ctd\u003e20.2\u003c\/td\u003e\n\u003ctd\u003e33.6\u003c\/td\u003e\n\u003ctd\u003e5.10\u003c\/td\u003e\n\u003ctd\u003e5.90\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003ctd\u003e6.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003eM22\u003c\/td\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003ctd\u003e35.9\u003c\/td\u003e\n\u003ctd\u003e5.10\u003c\/td\u003e\n\u003ctd\u003e5.90\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003ctd\u003e6.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003eM24\u003c\/td\u003e\n\u003ctd\u003e24.5\u003c\/td\u003e\n\u003ctd\u003e40.0\u003c\/td\u003e\n\u003ctd\u003e6.50\u003c\/td\u003e\n\u003ctd\u003e7.50\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e7.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003eM27\u003c\/td\u003e\n\u003ctd\u003e27.5\u003c\/td\u003e\n\u003ctd\u003e43.0\u003c\/td\u003e\n\u003ctd\u003e6.50\u003c\/td\u003e\n\u003ctd\u003e7.50\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e7.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003eM30\u003c\/td\u003e\n\u003ctd\u003e30.5\u003c\/td\u003e\n\u003ctd\u003e48.2\u003c\/td\u003e\n\u003ctd\u003e9.50\u003c\/td\u003e\n\u003ctd\u003e10.50\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e8.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003eM36\u003c\/td\u003e\n\u003ctd\u003e36.5\u003c\/td\u003e\n\u003ctd\u003e58.2\u003c\/td\u003e\n\u003ctd\u003e10.30\u003c\/td\u003e\n\u003ctd\u003e11.30\u003c\/td\u003e\n\u003ctd\u003e6.0\u003c\/td\u003e\n\u003ctd\u003e10.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eAll dimensions in mm per DIN 128 Type A. s = material thickness; b = ring width; h = free height (curved profile height). Please verify with your engineering team for critical applications.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDIN 128 Type A vs. Type B — Key Differences\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eFeature\u003c\/th\u003e\n      \u003cth\u003eDIN 128 Type A (Curved)\u003c\/th\u003e\n      \u003cth\u003eDIN 128 Type B (Wavy)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eSingle curved arc\u003c\/td\u003e\n\u003ctd\u003eWavy \/ corrugated (multiple waves)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring action\u003c\/td\u003e\n\u003ctd\u003eAxial spring via single curve\u003c\/td\u003e\n\u003ctd\u003eAxial spring via multiple waves\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLoad distribution\u003c\/td\u003e\n\u003ctd\u003eEven, smooth bearing surface\u003c\/td\u003e\n\u003ctd\u003eMulti-point contact\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTypical use\u003c\/td\u003e\n\u003ctd\u003eCheese head \u0026amp; pan head screws\u003c\/td\u003e\n\u003ctd\u003eGeneral bolted assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSize range (DIN 128)\u003c\/td\u003e\n\u003ctd\u003eM2 – M36\u003c\/td\u003e\n\u003ctd\u003eM2 – M36\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDIN 128A vs. DIN 127B — Key Differences\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eFeature\u003c\/th\u003e\n      \u003cth\u003eDIN 128 Type A (Curved)\u003c\/th\u003e\n      \u003cth\u003eDIN 127 Type B (Helical Split)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eCurved single-coil ring\u003c\/td\u003e\n\u003ctd\u003eHelical split ring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAnti-loosening mechanism\u003c\/td\u003e\n\u003ctd\u003eAxial spring force only\u003c\/td\u003e\n\u003ctd\u003eSpring force + bite-in effect\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLoad distribution\u003c\/td\u003e\n\u003ctd\u003eSmooth, even bearing surface\u003c\/td\u003e\n\u003ctd\u003eSharp edges bite into surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSurface damage\u003c\/td\u003e\n\u003ctd\u003eMinimal\u003c\/td\u003e\n\u003ctd\u003eMarks bearing surface\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTypical use\u003c\/td\u003e\n\u003ctd\u003eSoft materials, coated surfaces, cheese head screws\u003c\/td\u003e\n\u003ctd\u003eGeneral heavy-duty assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMaterial \u0026amp; Mechanical Properties — A2 Stainless Steel (SUS304)\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaterial Grade\u003c\/td\u003e\n\u003ctd\u003eA2 \/ SUS304 \/ 1.4301 \/ 0Cr18Ni9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCr Content\u003c\/td\u003e\n\u003ctd\u003e17.5 – 19.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNi Content\u003c\/td\u003e\n\u003ctd\u003e8.0 – 10.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003eWhitened \u0026amp; Passivated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMagnetic\u003c\/td\u003e\n\u003ctd\u003eNon-magnetic (austenitic)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-196°C to +300°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd\u003eExcellent — atmospheric, fresh water, mild chemicals\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRoHS \/ REACH\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eHow DIN 128A Curved Spring Washers Work\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurved profile:\u003c\/strong\u003e The washer is formed into a curved arc. When compressed under bolt load, it acts as a spring, maintaining axial clamping force as the joint settles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-loosening:\u003c\/strong\u003e The spring-back force compensates for relaxation and embedding losses, keeping the bolt under tension\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEven load distribution:\u003c\/strong\u003e The smooth curved surface distributes load evenly without marking or damaging the bearing surface — ideal for soft materials and coated surfaces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesigned for cheese head screws:\u003c\/strong\u003e The reduced outer diameter and curved profile are optimized for use with DIN 84 cheese head and DIN 7985 pan head screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eApplication Scenarios\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCheese head screw assemblies (DIN 84)\u003c\/strong\u003e — optimized OD fits within screw head recess\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePan head screw assemblies (DIN 7985)\u003c\/strong\u003e — smooth curved profile suits pan head applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFood \u0026amp; beverage processing equipment\u003c\/strong\u003e — A2 stainless, food-safe, easy to clean\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedical \u0026amp; pharmaceutical equipment\u003c\/strong\u003e — non-magnetic, corrosion-free\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectronics \u0026amp; precision instruments\u003c\/strong\u003e — non-magnetic, no surface damage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutdoor \u0026amp; architectural hardware\u003c\/strong\u003e — excellent atmospheric corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChemical \u0026amp; water treatment equipment\u003c\/strong\u003e — resistance to mild chemicals and fresh water\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Photo Gallery\u003c\/h2\u003e\n\u003cp\u003eFULLERKREG DIN 128A Curved Spring Lock Washer, A2 Stainless Steel:\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\u003ePackaging \u0026amp; Supply\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eStandard Pack (pcs)\u003c\/th\u003e\n\u003cth\u003eBulk Carton (pcs)\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\u003e200\u003c\/td\u003e\n\u003ctd\u003e10,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e5,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e3,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e2,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e1,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM20\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM24\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eCustom packaging and labeling available for OEM \/ wholesale orders. Contact FULLERKREG for bulk pricing.\u003c\/em\u003e\u003c\/p\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\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, RoHS declarations, test reports available\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\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is DIN 128 Type A?\u003c\/strong\u003e\u003cbr\u003e\nA: DIN 128 Type A is a curved spring lock washer standard. The washer is formed into a single curved arc (not helical split like DIN 127). When compressed, it acts as a spring to maintain bolt tension and resist loosening. Type A is curved; Type B is wavy (corrugated).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between DIN 128A and DIN 127B?\u003c\/strong\u003e\u003cbr\u003e\nA: DIN 127B is a helical split ring that uses both spring force and sharp edge bite-in to resist loosening. DIN 128A uses only axial spring force via its curved profile, with no sharp edges — making it suitable for soft materials, coated surfaces, and applications where surface marking must be avoided.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Which screw types is DIN 128A designed for?\u003c\/strong\u003e\u003cbr\u003e\nA: DIN 128A is specifically designed for use with cheese head screws (DIN 84 \/ ISO 1207) and pan head screws (DIN 7985 \/ ISO 7045). The reduced outer diameter fits within the head recess of these screw types.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is A2 stainless steel food-safe?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. A2 (SUS304) stainless steel is widely used in food processing and pharmaceutical equipment. It is non-toxic, easy to clean, and resistant to most food-contact environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are all sizes in stock?\u003c\/strong\u003e\u003cbr\u003e\nA: Standard sizes M2–M36 are typically in stock. Please contact FULLERKREG to confirm availability for your specific size and quantity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Do you provide material test certificates?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Mill certificates, chemical composition reports, and dimensional inspection reports are available upon request.\u003c\/p\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-128a-lock-washer-spring-a2-stainless.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}