{"product_id":"electro-hardware-s789-mo4-f16-h-circuit-board-spacer-no-8","title":"Electro Hardware S789-MO4-F16-H Circuit Board Spacer No. 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S789-MO4-F16-H is a round, female unthreaded circuit board spacer designed to create precise standoff clearance between a PCB and a mounting surface. Machined from aluminum alloy Grade T-3 and left uncoated, this spacer meets the QQ-A-225A Comp 2 fastener standard. It accepts a No. 8 screw, measures 0.1875 inches overall length, with an inside diameter of 0.171 inches and an outside diameter of 0.3125 inches. It is used by electricians, electronics technicians, and control board installers in HVAC, industrial, and panel assembly applications wherever board-level spacing and vibration isolation are required.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for use in residential and light commercial control panel assemblies, printed circuit board mounting applications, and enclosure builds that require consistent, low-profile standoff height. The aluminum construction keeps weight minimal and resists corrosion in typical indoor environments. The female unthreaded bore accepts a No. 8 fastener passed through from the board side, making it straightforward to stack or layer in multi-board configurations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale unthreaded body accepts No. 8 screw for clean through-fastener installation\u003c\/li\u003e\n  \u003cli\u003eAluminum Grade T-3 construction, QQ-A-225A Comp 2 compliant\u003c\/li\u003e\n  \u003cli\u003eOverall length of 0.1875 inches with a tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eInside diameter of 0.171 inches with a tolerance of 0.000 to 0.010 inches\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 0.3125 inches in a round body profile\u003c\/li\u003e\n  \u003cli\u003eUncoated finish  -  no added plating or coating that could interfere with electrical grounding paths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard No. 8 screw-size round circuit board spacer for use in PCB mounting, control panel assembly, and electronic enclosure applications requiring a 0.1875-inch standoff height.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics technicians or licensed electricians during control board assembly or panel wiring. Power down and de-energize the board or panel completely before handling any circuit board hardware. Use appropriately sized tooling for No. 8 fasteners and verify that fastener torque is consistent with PCB manufacturer guidelines. Do not over-torque, as aluminum spacers can deform and compromise board seating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\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\u003eLength Tolerance\u003c\/strong\u003e: -0.005 to 0.005 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\u003eOutside Diameter\u003c\/strong\u003e: 0.3125 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\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: S789-MO4-F16-H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51740380365106,"sku":"S789-MO4-F16-H","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_9e331b6c-9d95-4ed7-b1b0-386aaa6704c5.jpg?v=1788824637","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s789-mo4-f16-h-circuit-board-spacer-no-8","provider":"Voomi Supply","version":"1.0","type":"link"}