{"product_id":"exmark-3290-357-whiz-nut-hhf-fastener","title":"Exmark 3290-357 Whiz Nut Hhf Fastener","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EXMARK 3290-357 is a Whiz nut HHF fastener used in the assembly and maintenance of Exmark lawn and garden equipment. This hardware component serves as a locking or securing fastener, holding critical assemblies together on commercial and residential mowing equipment. Whiz nuts feature a serrated or friction-locking flange that resists loosening from vibration, making them well suited for high-cycle outdoor power equipment environments. Technicians and service professionals rely on OEM-spec fasteners like this one to maintain proper torque retention and equipment integrity during scheduled maintenance or repair work.\u003c\/p\u003e\u003cp\u003eThis nut is intended for use in Exmark lawn and garden equipment assemblies where an HHF-style Whiz nut is specified by the manufacturer. It is a direct OEM replacement part sourced through authorized Exmark parts channels, appropriate for commercial turf maintenance equipment serviced by professional landscaping technicians or equipment dealers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWhiz nut design with flange-locking serrations to resist vibration loosening\u003c\/li\u003e\n\u003cli\u003eOEM Exmark part for precise fit in specified assemblies\u003c\/li\u003e\n\u003cli\u003eHHF hex head flange configuration for standard wrench or socket installation\u003c\/li\u003e\n\u003cli\u003eSuitable for lawn and garden equipment maintenance and repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement fastener for Exmark lawn and garden equipment assemblies that specify the 3290-357 Whiz nut HHF. Consult your equipment service manual to confirm fitment for your specific model.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified equipment technician or dealer familiar with Exmark service procedures. Disengage all blades, shut off the engine, and remove the ignition key before accessing any fastener assembly. Use the appropriate metric or standard wrench or socket to seat the flange nut fully against the mating surface. Follow the equipment manufacturer's service manual for proper assembly sequence and any applicable torque guidance for the specific joint.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: Whiz Nut HHF Fastener\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: EXMARK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3290-357\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EXMARK","offers":[{"title":"Default Title","offer_id":51199311348018,"sku":"3290-357","price":14.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/exmark-3290-357-whiz-nut-hhf-fastener","provider":"Voomi Supply","version":"1.0","type":"link"}