{"product_id":"electro-hardware-s357m04f16e-round-board-spacer-no-4","title":"Electro Hardware S357M04F16E Round Board Spacer No. 4","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S357M04F16E is a round, female unthreaded circuit board spacer machined from aluminum alloy grade T3 to the QQ-A-225A Comp 2 fastener standard. It accepts a No. 4 screw and measures 1.25 inches overall length with a 0.116 inch inside diameter and a 0.1875 inch outside diameter. The spacer carries an uncoated, bright finish and is manufactured to tight tolerances: inside diameter tolerance of 0.000 to 0.010 inches and length tolerance of -0.005 to 0.005 inches. Electronics assemblers, panel builders, and field technicians use this hardware to maintain consistent standoff clearance between a printed circuit board and its mounting surface.\u003c\/p\u003e\n\u003cp\u003eThis spacer is appropriate for use in residential and commercial electronic assemblies wherever a No. 4 screw is the fastening element. Common applications include HVAC control boards, electrical enclosures, and any panel assembly requiring a precise, repeatable standoff distance. Its compact round body and lightweight aluminum construction make it well suited for space-constrained PCB layouts. Minimum order quantity is 25 pieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale unthreaded round body accepts No. 4 screw fasteners\u003c\/li\u003e\n  \u003cli\u003eOverall length of 1.25 inches provides consistent standoff clearance\u003c\/li\u003e\n  \u003cli\u003e0.1875 inch outside diameter with tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eAluminum grade T3 construction — lightweight and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eManufactured to QQ-A-225A Comp 2 fastener standard\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating to 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. 4 screw circuit board spacer for use in PCB mounting applications across residential and commercial electronic assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics assemblers or qualified technicians. Always power down and de-energize the circuit board assembly before installing or replacing spacers. Use hand tools sized for No. 4 hardware to avoid deforming the unthreaded bore. Verify standoff height requirements against board layout specifications before final assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Aluminum Grade T3\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: 1.25 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\u003eOutside Diameter\u003c\/strong\u003e: 0.1875 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: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161816\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: S357M04F16E\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51729336598834,"sku":"S357M04F16E","price":33.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_536f31f3-6cd7-422e-a3fe-298b7f73b20a.jpg?v=1788703132","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s357m04f16e-round-board-spacer-no-4","provider":"Voomi Supply","version":"1.0","type":"link"}