{"product_id":"electro-hardware-s505-m04-f16-h-circuit-board-spacer","title":"Electro Hardware S505-M04-F16-H Circuit Board Spacer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE S505-M04-F16-H is a round, female unthreaded circuit board spacer machined from aluminum alloy grade T-3 to QQ-A-225A Comp 2 specification. It provides a fixed standoff gap between a printed circuit board and its mounting surface, keeping the board clear of chassis contact and reducing the risk of shorts. With an overall length of 0.125 inches, an outside diameter of 0.25 inches, and an inside diameter of 0.171 inches, this spacer is sized for number 8 screw installations. The uncoated aluminum finish keeps weight minimal while offering adequate corrosion resistance in controlled environments. Electronics assemblers and field technicians handling control boards in HVAC equipment, electrical enclosures, and industrial panels are the primary installers.\u003c\/p\u003e\u003cp\u003eThis spacer is suited for use in residential and commercial control board assemblies wherever a number 8 fastener is used to mount a PCB. Common applications include HVAC control boards, variable-speed drive enclosures, relay panels, and other low-voltage electronics assemblies that require a precise, rigid standoff. The compact 0.125-inch length makes it appropriate for tight board-to-chassis clearances where longer standoffs would interfere with adjacent components or wiring.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFemale unthreaded round body accepts a number 8 screw for simple PCB mounting\u003c\/li\u003e\n\u003cli\u003eOverall length of 0.125 inches maintains consistent board standoff height\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 0.25 inches and inside diameter of 0.171 inches with a tolerance of 0.000 to 0.010 inches\u003c\/li\u003e\n\u003cli\u003eAluminum grade T-3 construction per QQ-A-225A Comp 2 for consistent machining quality\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for dry, controlled-environment installations\u003c\/li\u003e\n\u003cli\u003eLength tolerance of -0.005 to 0.005 inches ensures predictable stacking in multi-spacer assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation component for circuit board mounting applications requiring a number 8 screw, female unthreaded round spacer in the inch measurement system.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by electronics technicians or qualified field service personnel. De-energize and lock out all power to the control panel or circuit board assembly before handling any PCB hardware. Use a torque-limiting driver appropriate for number 8 fasteners to avoid cracking the board or deforming the spacer. Verify standoff height requirements against the specific board and chassis drawing before selecting spacer quantity or stack configuration.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: T-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: QQ-A-225A Comp 2\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\u003eScrew Size\u003c\/strong\u003e: 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.125 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\u003eInside Diameter Tolerance\u003c\/strong\u003e: 0.000 to 0.010 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\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: S505-M04-F16-H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51743283183922,"sku":"S505-M04-F16-H","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c28c37ee9053a0de74a01cc9481c1024.jpg?v=1788845041","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s505-m04-f16-h-circuit-board-spacer","provider":"Voomi Supply","version":"1.0","type":"link"}