{"product_id":"gibraltar-z8844-m5-extra-thick-flat-washer-black-oxide","title":"Gibraltar Z8844 M5 Extra Thick Flat Washer Black Oxide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GIBRALTAR Z8844 is an M5 extra thick flat washer manufactured from case-hardened 1010 steel with a black oxide finish. It measures 5.3mm inside diameter, 15mm outside diameter, and 3.5mm thick, providing a substantially greater load-bearing surface and clamping depth than standard flat washers of the same screw size. The black oxide finish offers mild corrosion resistance and reduces light reflection in finished assemblies. Weighing 0.01 pounds per piece, this washer is suited for mechanical, structural, and general fastening applications where standard washer thickness is insufficient.\u003c\/p\u003e\u003cp\u003eThis washer is used in metric fastening applications requiring a thick, rigid bearing surface under an M5 fastener head or nut. Typical install scenarios include machinery assembly, equipment mounting, sheet metal fabrication, and structural bracketing where load distribution over a larger area is required. It is a metric-standard component and is commonly specified by maintenance technicians, millwrights, and general tradespeople working with M5 hardware.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExtra thick profile at 3.5mm provides greater load distribution than standard flat washers\u003c\/li\u003e\n\u003cli\u003eCase-hardened 1010 steel construction resists deformation under high clamp loads\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides mild corrosion resistance and a non-reflective appearance\u003c\/li\u003e\n\u003cli\u003e5.3mm ID fits M5 screws and bolts with minimal clearance for accurate centering\u003c\/li\u003e\n\u003cli\u003e15mm OD spreads bearing load across a wider surface area\u003c\/li\u003e\n\u003cli\u003eMetric dimensional standard for use in metric fastening systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a metric flat washer for use with M5 screws and bolts in general mechanical and structural fastening applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires no special tools beyond standard hand tools for the associated fastener. Ensure mating surfaces are clean and free of debris before seating the washer to maintain full bearing contact. Do not substitute this washer in applications requiring a specific hardness grade or load rating without confirming the 1010 case-hardened steel specification meets the engineering requirement. Follow applicable mechanical or structural codes for the assembly in which this fastener hardware is used.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWasher Type\u003c\/strong\u003e: Extra Thick Flat Washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Size\u003c\/strong\u003e: M5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 5.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 3.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Case-Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 1010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161807\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GIBRALTAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: Z8844\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51692693127474,"sku":"Z8844","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6afd846acc6f55ad1f5a4d0fbdcd501d.jpg?v=1788301294","url":"https:\/\/voomisupply.com\/products\/gibraltar-z8844-m5-extra-thick-flat-washer-black-oxide","provider":"Voomi Supply","version":"1.0","type":"link"}