{"product_id":"gibraltar-z9219-extra-thick-flat-washer-1-2-in-18-8-stainless","title":"Gibraltar Z9219 Extra Thick Flat Washer 1\/2 in 18-8 Stainless","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GIBRALTAR Z9219 is an extra thick flat washer designed for 1\/2 inch screw applications requiring added load distribution and corrosion resistance. Manufactured from 18-8 stainless steel with a plain finish, this washer provides reliable performance in wet, outdoor, or chemically exposed environments. At 3\/16 inches thick, it delivers more bearing surface than a standard flat washer, reducing fastener pull-through in softer materials. Trades including plumbing, HVAC, electrical, and general mechanical service use extra thick flat washers where vibration, heavy clamping loads, or substrate softness demand increased surface contact. The 0.05 pound unit weight makes it easy to handle on the job.\u003c\/p\u003e\u003cp\u003eThis washer fits 1\/2 inch fasteners and is suited for use in residential and commercial mechanical systems, structural assemblies, equipment mounting, and general trade applications where stainless steel hardware is specified. The 18-8 stainless steel construction makes it appropriate for installations subject to moisture exposure, including rooftop HVAC equipment, outdoor plumbing connections, pool equipment enclosures, and marine-adjacent environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExtra thick design at 3\/16 inches (0.1875 inches) for increased load distribution\u003c\/li\u003e\n\u003cli\u003e18-8 stainless steel construction resists corrosion in wet and outdoor environments\u003c\/li\u003e\n\u003cli\u003eInside diameter of 17\/32 inches (0.5313 inches) fits 1\/2 inch fasteners\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 1-1\/16 inches (1.0625 inches) provides broad bearing surface\u003c\/li\u003e\n\u003cli\u003ePlain finish with no additional coating — no adhesion or galvanic compatibility concerns\u003c\/li\u003e\n\u003cli\u003eRockwell hardness C36 to C42 for consistent performance under clamping load\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 1\/2 inch screws and bolts in standard inch-measurement fastener assemblies requiring an extra thick flat washer profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall using standard hand tools; no specialized equipment is required for flat washer installation. Ensure the fastener and mating hardware are compatible with 18-8 stainless steel to avoid galvanic corrosion when joining dissimilar metals. Power down or de-energize any associated equipment before accessing fastened assemblies in electrical or mechanical panels. Follow applicable mechanical codes and equipment manufacturer torque guidelines when completing the fastened joint.\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: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 17\/32 inches (0.5313 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1-1\/16 inches (1.0625 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 18-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Plain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: Rockwell C36-C42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: Z9219\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GIBRALTAR","offers":[{"title":"Default Title","offer_id":51689205727538,"sku":"Z9219","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0875b776a2dd570592873360a9d80d5a.jpg?v=1788256139","url":"https:\/\/voomisupply.com\/products\/gibraltar-z9219-extra-thick-flat-washer-1-2-in-18-8-stainless","provider":"Voomi Supply","version":"1.0","type":"link"}