{"title":"Split Lock Washers","description":"\u003cp\u003eA single coil of spring section, split and offset so the two ends sit out of plane, to DIN 127B. Compressed flat under the nut, it stores energy and keeps pushing back as the joint relaxes.\u003c\/p\u003e\n\u003ch3\u003eWhat it does and what it does not\u003c\/h3\u003e\n\u003cp\u003eA split washer maintains some tension when a joint settles or thermally cycles, and the sharp cut ends bite into the nut face and the surface below. That resists back-off from mild vibration.\u003c\/p\u003e\n\u003cp\u003eIt is not a substitute for a prevailing torque nut. Under sustained or heavy vibration, and in any joint where loosening has real consequences, use a \u003ca href=\"\/collections\/nylon-insert-lock-nuts\"\u003enylon insert lock nut\u003c\/a\u003e. The split washer is the light-duty answer.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eIt goes under the part that turns — under the nut if you tighten the nut, under the head if you tighten the bolt. Tighten until the coil is flat; a split washer that has not closed is doing nothing. And do not stack it with a \u003ca href=\"\/collections\/flat-washers\"\u003eflat washer\u003c\/a\u003e against a soft surface, because the bite that makes it work lands on the flat washer instead of the joint.\u003c\/p\u003e\n\u003ch3\u003eMaterial\u003c\/h3\u003e\n\u003cp\u003e304 stainless. Outside diameter and section are listed for every size in both unit systems.\u003c\/p\u003e","products":[{"product_id":"m3-split-lock-washer-stainless-steel-304","title":"M3 Split Lock Washer, Stainless Steel 304","description":"\u003cp class=\"pf-crumbs\"\u003e\u003ca href=\"\/\"\u003eHome\u003c\/a\u003e › \u003ca href=\"\/collections\/split-lock-washers\"\u003eSplit Lock Washers\u003c\/a\u003e › \u003cspan\u003eM3 Split Lock Washer, Stainless Steel 304\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM3 Split Lock Washer, Stainless Steel 304\u003c\/strong\u003e — a M3 washer in Stainless Steel 304. Distributes clamp load over the joint surface and protects the finish beneath the head or nut.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eThread size\u003c\/th\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread pitch\u003c\/th\u003e\n\u003ctd\u003e0.5 mm (coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e0.8 mm (0.031 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutside diameter\u003c\/th\u003e\n\u003ctd\u003e6.2 mm (0.244 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread configuration\u003c\/th\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody shape\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel 304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003ePlain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStrength grade \/ class\u003c\/th\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eDIN 127B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax continuous temperature\u003c\/th\u003e\n\u003ctd\u003e400 °C (752 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoHS\u003c\/th\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e0.144 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard pack\u003c\/th\u003e\n\u003ctd\u003e100 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHTS classification\u003c\/th\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eInstallation reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap drill for M3:\u003c\/strong\u003e 2.5 mm (0.098 in) at 75% thread engagement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNearest imperial thread:\u003c\/strong\u003e #4-40 — similar in diameter but \u003cem\u003enot interchangeable\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout Stainless Steel 304\u003c\/h3\u003e\u003cp\u003e304 stainless resists general atmospheric and indoor corrosion and is non-magnetic in the annealed condition. It is not the right choice for salt spray or chloride exposure — 316 is. Stainless threads can gall under speed or load; back off the driver and use an anti-seize compound on repeated assemblies.\u003c\/p\u003e\u003ch3\u003eRelated reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/fastener-standards-cross-reference-asme-iso-and-din\"\u003eFastener standards cross-reference: ASME, ISO and DIN\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/tap-drill-size-chart-metric-unc-and-unf\"\u003eTap drill size chart — metric, UNC and UNF\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/metric-to-imperial-fastener-conversion\"\u003eMetric to imperial fastener conversion\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/bolt-head-markings-and-grade-chart\"\u003eBolt head markings and grade chart\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/split-lock-washers\"\u003eAll split lock washers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/reference\"\u003eAll reference charts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNeed a quantity, a length or a material that is not listed? \u003ca href=\"\/pages\/contact-us\"\u003eSend us the specification\u003c\/a\u003e and we will source it.\u003c\/p\u003e","brand":"Planet Fasteners","offers":[{"title":"100 pcs","offer_id":52522790486247,"sku":"PF-LW-M3-SS","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/6012\/0295\/files\/din-127b-a2-watermark-removed.png?v=1787893046"},{"product_id":"m4-split-lock-washer-stainless-steel-304","title":"M4 Split Lock Washer, Stainless Steel 304","description":"\u003cp class=\"pf-crumbs\"\u003e\u003ca href=\"\/\"\u003eHome\u003c\/a\u003e › \u003ca href=\"\/collections\/split-lock-washers\"\u003eSplit Lock Washers\u003c\/a\u003e › \u003cspan\u003eM4 Split Lock Washer, Stainless Steel 304\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM4 Split Lock Washer, Stainless Steel 304\u003c\/strong\u003e — a M4 washer in Stainless Steel 304. Distributes clamp load over the joint surface and protects the finish beneath the head or nut.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eThread size\u003c\/th\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread pitch\u003c\/th\u003e\n\u003ctd\u003e0.7 mm (coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e0.9 mm (0.035 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutside diameter\u003c\/th\u003e\n\u003ctd\u003e7.6 mm (0.299 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread configuration\u003c\/th\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody shape\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel 304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003ePlain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStrength grade \/ class\u003c\/th\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eDIN 127B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax continuous temperature\u003c\/th\u003e\n\u003ctd\u003e400 °C (752 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoHS\u003c\/th\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e0.23 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard pack\u003c\/th\u003e\n\u003ctd\u003e100 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHTS classification\u003c\/th\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eInstallation reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap drill for M4:\u003c\/strong\u003e 3.3 mm (0.13 in) at 75% thread engagement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNearest imperial thread:\u003c\/strong\u003e #8-32 — similar in diameter but \u003cem\u003enot interchangeable\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout Stainless Steel 304\u003c\/h3\u003e\u003cp\u003e304 stainless resists general atmospheric and indoor corrosion and is non-magnetic in the annealed condition. It is not the right choice for salt spray or chloride exposure — 316 is. Stainless threads can gall under speed or load; back off the driver and use an anti-seize compound on repeated assemblies.\u003c\/p\u003e\u003ch3\u003eRelated reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/fastener-standards-cross-reference-asme-iso-and-din\"\u003eFastener standards cross-reference: ASME, ISO and DIN\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/tap-drill-size-chart-metric-unc-and-unf\"\u003eTap drill size chart — metric, UNC and UNF\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/metric-to-imperial-fastener-conversion\"\u003eMetric to imperial fastener conversion\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/bolt-head-markings-and-grade-chart\"\u003eBolt head markings and grade chart\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/split-lock-washers\"\u003eAll split lock washers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/reference\"\u003eAll reference charts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNeed a quantity, a length or a material that is not listed? \u003ca href=\"\/pages\/contact-us\"\u003eSend us the specification\u003c\/a\u003e and we will source it.\u003c\/p\u003e","brand":"Planet Fasteners","offers":[{"title":"100 pcs","offer_id":52522790551783,"sku":"PF-LW-M4-SS","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/6012\/0295\/files\/din-127b-a2-watermark-removed_c097bccf-db61-40f3-9595-57cd0d008215.png?v=1787893106"},{"product_id":"m5-split-lock-washer-stainless-steel-304","title":"M5 Split Lock Washer, Stainless Steel 304","description":"\u003cp class=\"pf-crumbs\"\u003e\u003ca href=\"\/\"\u003eHome\u003c\/a\u003e › \u003ca href=\"\/collections\/split-lock-washers\"\u003eSplit Lock Washers\u003c\/a\u003e › \u003cspan\u003eM5 Split Lock Washer, Stainless Steel 304\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM5 Split Lock Washer, Stainless Steel 304\u003c\/strong\u003e — a M5 washer in Stainless Steel 304. Distributes clamp load over the joint surface and protects the finish beneath the head or nut.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eThread size\u003c\/th\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread pitch\u003c\/th\u003e\n\u003ctd\u003e0.8 mm (coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e1.2 mm (0.047 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutside diameter\u003c\/th\u003e\n\u003ctd\u003e9.2 mm (0.362 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread configuration\u003c\/th\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody shape\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel 304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003ePlain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStrength grade \/ class\u003c\/th\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eDIN 127B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax continuous temperature\u003c\/th\u003e\n\u003ctd\u003e400 °C (752 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoHS\u003c\/th\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit weight\u003c\/th\u003e\n\u003ctd\u003e0.438 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard pack\u003c\/th\u003e\n\u003ctd\u003e100 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHTS classification\u003c\/th\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eInstallation reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap drill for M5:\u003c\/strong\u003e 4.2 mm (0.165 in) at 75% thread engagement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNearest imperial thread:\u003c\/strong\u003e #10-32 — similar in diameter but \u003cem\u003enot interchangeable\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout Stainless Steel 304\u003c\/h3\u003e\u003cp\u003e304 stainless resists general atmospheric and indoor corrosion and is non-magnetic in the annealed condition. It is not the right choice for salt spray or chloride exposure — 316 is. Stainless threads can gall under speed or load; back off the driver and use an anti-seize compound on repeated assemblies.\u003c\/p\u003e\u003ch3\u003eRelated reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/fastener-standards-cross-reference-asme-iso-and-din\"\u003eFastener standards cross-reference: ASME, ISO and DIN\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/tap-drill-size-chart-metric-unc-and-unf\"\u003eTap drill size chart — metric, UNC and UNF\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/metric-to-imperial-fastener-conversion\"\u003eMetric to imperial fastener conversion\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/bolt-head-markings-and-grade-chart\"\u003eBolt head markings and grade chart\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/split-lock-washers\"\u003eAll split lock washers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/reference\"\u003eAll reference charts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNeed a quantity, a length or a material that is not listed? \u003ca href=\"\/pages\/contact-us\"\u003eSend us the specification\u003c\/a\u003e and we will source it.\u003c\/p\u003e","brand":"Planet Fasteners","offers":[{"title":"100 pcs","offer_id":52522790650087,"sku":"PF-LW-M5-SS","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/6012\/0295\/files\/din-127b-a2-watermark-removed_85932cf6-c843-44dc-bad5-ea9b1fa95ba8.png?v=1787893175"}],"url":"https:\/\/planetfasteners.com\/collections\/split-lock-washers.oembed","provider":"Planet Fasteners","version":"1.0","type":"link"}