{"product_id":"electro-hardware-s785-mo4-f16-e-round-pcb-spacer-no-4","title":"Electro Hardware S785-MO4-F16-E Round Pcb Spacer No. 4","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S785-MO4-F16-E is a round, female unthreaded circuit board spacer designed to maintain precise standoff clearance between a PCB and a mounting surface or adjacent board. Machined from T-3 grade aluminum to QQ-A-225A Comp 2 specification, it delivers consistent dimensional tolerances and a clean, uncoated finish suited to most electronic assembly environments. The spacer measures 0.125 inches overall length with a 0.116 inch inside diameter and a 0.3125 inch outside diameter, accepting a No. 4 screw. Electricians, electronics technicians, and control-board assemblers working on HVAC, electrical, or industrial control applications will find this a reliable OEM-style hardware component.\u003c\/p\u003e\n\u003cp\u003eThis spacer is used wherever a No. 4 screw fastener is required to stack or stand off a circuit board in a residential or light-commercial control enclosure. Typical applications include HVAC control boards, low-voltage relay panels, and general electronic assemblies that require repeatable spacing and secure mechanical support. The female unthreaded bore allows the fastener to pass through cleanly without engaging threads in the spacer body itself, keeping the assembly straightforward and the board properly isolated from the mounting plane.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eT-3 grade aluminum construction per QQ-A-225A Comp 2 fastener standard\u003c\/li\u003e\n  \u003cli\u003eFemale unthreaded bore accepts No. 4 screw fasteners\u003c\/li\u003e\n  \u003cli\u003e0.125 inch overall length with tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003e0.116 inch inside diameter with inside diameter tolerance of 0.000 to 0.010 inches\u003c\/li\u003e\n  \u003cli\u003eRound body profile with 0.3125 inch outside diameter for consistent seating\u003c\/li\u003e\n  \u003cli\u003eUncoated finish  -  compatible with most PCB assembly environments without coating interference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style hardware replacement or new-assembly component for circuit board mounting applications requiring a No. 4 screw, female unthreaded, round aluminum spacer with a 0.125 inch standoff length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics technicians or control-board assemblers during panel build or board replacement service. Power down and de-energize the control enclosure fully before handling any circuit board hardware. Use a calibrated torque driver appropriate for No. 4 fasteners to avoid over-compressing the spacer or distorting the PCB mounting holes. Verify spacer seating is flush and square before securing the final fastener.\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. 4\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: 0.125 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: 0.116 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: S785-MO4-F16-E\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51742884036914,"sku":"S785-MO4-F16-E","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_40b39f3c-c2ed-4267-a721-947e164d871a.jpg?v=1788840203","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s785-mo4-f16-e-round-pcb-spacer-no-4","provider":"Voomi Supply","version":"1.0","type":"link"}