{"product_id":"electro-hardware-s509m17f16h-round-circuit-board-spacer","title":"Electro Hardware S509M17F16H Round Circuit Board Spacer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S509M17F16H is a round, female unthreaded circuit board spacer designed to maintain precise standoff distances between a PCB and a mounting surface. Built from Nylon Grade 101 material to MIL-P-17091B fastener standard, this spacer accepts a No. 8 screw and measures 0.1875 inches overall length with a 0.25-inch outside diameter and a 0.171-inch inside diameter. The uncoated finish keeps the profile clean and non-conductive. Installed by electronics technicians, PCB assembly professionals, and trade technicians working on HVAC control boards or electrical panel assemblies, this spacer is a direct drop-in component requiring no additional hardware modification.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for use in residential and light commercial electronic assemblies where a compact, low-profile standoff is required. Typical applications include mounting printed circuit boards to enclosure panels, control board assemblies in HVAC equipment, and general electronic hardware builds where No. 8 screw clearance and a 3\/16-inch standoff height are specified. The nylon construction makes it well suited for environments where electrical isolation between the board and chassis is necessary.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNylon Grade 101 construction provides electrical isolation and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eMeets MIL-P-17091B fastener standard for consistent dimensional and material quality\u003c\/li\u003e\n  \u003cli\u003eFemale unthreaded body accepts No. 8 screw for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eOverall length of 0.1875 inches with tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of 0.000 to 0.010 inches ensures consistent screw fit\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish — no added coating to affect clearance or conductivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation spacer for PCB assemblies requiring a round, female unthreaded No. 8 screw standoff with a 3\/16-inch overall length and 1\/4-inch outside diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis spacer is installed by electronics assembly technicians or trade professionals servicing circuit board assemblies. Power down and de-energize all equipment completely before servicing any control board or PCB mounting hardware. Use hand tools only when seating nylon spacers — power tools can crack or deform the nylon body. Follow applicable NEC guidelines when working on control board enclosures in HVAC or electrical equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nylon Grade 101\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: MIL-P-17091B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Size\u003c\/strong\u003e: No. 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Female Unthreaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.171 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: 0.000 to 0.010 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ELECTRO HARDWARE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: S509M17F16H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51730135187762,"sku":"S509M17F16H","price":836.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1ef4f7d634a25e8f4c0ce7e27ba21ab6.jpg?v=1788712337","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s509m17f16h-round-circuit-board-spacer","provider":"Voomi Supply","version":"1.0","type":"link"}