{"product_id":"electro-hardware-s301m04f16e-round-pcb-spacer-no-4-aluminum","title":"Electro Hardware S301M04F16E Round Pcb Spacer No. 4 Aluminum","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S301M04F16E is a round, female unthreaded circuit board spacer designed to maintain precise standoff distance between a PCB and its mounting surface. Machined from Aluminum Grade T3 per fastener standard QQ-A-225A Comp 2, this spacer measures 0.375 inches overall length with a 0.1875-inch outside diameter and a 0.116-inch inside diameter. The uncoated bright finish leaves the aluminum in its natural state, which is appropriate for most indoor electronic enclosure environments. It accepts a No. 4 screw. HVAC control board technicians, electricians, and electronics assemblers install this type of hardware when mounting PCBs inside equipment panels or control enclosures.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for residential and commercial applications wherever a No. 4 fastener is used to mount a circuit board with a defined standoff requirement of 0.375 inches. Typical use cases include HVAC control board assemblies, electrical panel sub-assemblies, and industrial enclosure PCB mounting. The compact 0.1875-inch outside diameter makes it appropriate for densely populated boards where clearance between components is limited. It is sold individually but carries a minimum order quantity of 25 units, making it practical for service shops and assembly operations that maintain bench stock of common hardware.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale unthreaded round body accepts No. 4 screws for straightforward PCB standoff mounting\u003c\/li\u003e\n  \u003cli\u003eAluminum Grade T3 construction per QQ-A-225A Comp 2 for consistent material quality\u003c\/li\u003e\n  \u003cli\u003eOverall length of 0.375 inches held to a tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of 0.000 to 0.010 inches for reliable fastener fit\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suitable for standard indoor electronic enclosure environments\u003c\/li\u003e\n  \u003cli\u003eCompact 0.1875-inch outside diameter for use in tight PCB layouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or stock hardware component for any circuit board assembly requiring a female unthreaded round spacer sized for a No. 4 screw with a 0.375-inch standoff height in an inch-measurement system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed electricians or electronics technicians during control board assembly or replacement service. Always de-energize the equipment and discharge any stored electrical energy before handling PCBs or mounting hardware. Use appropriately sized No. 4 fasteners and avoid overtightening, which can crack the PCB substrate or deform the spacer. Follow applicable NEC guidelines when servicing electrical enclosures containing control boards.\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: 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: 0.375 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\u003eOutside Diameter\u003c\/strong\u003e: 0.1875 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\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  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 25\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: S301M04F16E\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51729114235186,"sku":"S301M04F16E","price":24.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_d2599b5f-d125-48bd-8fd4-42f0f66cd6c6.jpg?v=1788700242","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s301m04f16e-round-pcb-spacer-no-4-aluminum","provider":"Voomi Supply","version":"1.0","type":"link"}