{"product_id":"electro-hardware-s357m01f21c-round-pcb-spacer-brass","title":"Electro Hardware S357M01F21C Round Pcb Spacer Brass","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE S357M01F21C is a round, female unthreaded circuit board spacer designed to create precise standoff clearance between a PCB and a mounting surface. Built from brass with a zinc-plated finish meeting ASTM B633 and QQ-B-626 Comp 22 Type 1 standards, this spacer delivers corrosion resistance and dimensional consistency in board-mounting applications. It accepts a No. 2 screw, measures 1.25 inches in overall length, and has an inside diameter of 0.089 inches with an outside diameter of 0.1875 inches. Electricians, electronics technicians, and control-board assemblers use this hardware when mounting PCBs inside HVAC control panels, equipment enclosures, and similar assemblies.\u003c\/p\u003e\u003cp\u003eThis spacer is suited for residential and light commercial applications where a No. 2 fastener is used to secure circuit boards at a fixed standoff height of 1.25 inches. Typical install scenarios include control board mounting in HVAC equipment, electrical enclosures, and industrial panel assemblies where consistent board-to-surface clearance and secure fastening are required. The zinc plating provides added protection in environments subject to moderate humidity or condensation exposure.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFemale unthreaded body accepts No. 2 screw for secure board-to-surface standoff\u003c\/li\u003e\n\u003cli\u003eBrass construction with zinc-plated finish meets ASTM B633 and QQ-B-626 Comp 22 Type 1 standards\u003c\/li\u003e\n\u003cli\u003e1.25 inch overall length with tight length tolerance of -0.005 to 0.005 inches for consistent stack height\u003c\/li\u003e\n\u003cli\u003eInside diameter of 0.089 inches with tolerance of 0.000 to 0.010 inches for reliable fastener fit\u003c\/li\u003e\n\u003cli\u003eRound body profile, 0.1875 inches outside diameter, fits standard PCB mounting hole layouts\u003c\/li\u003e\n\u003cli\u003eInch measurement system; sold individually with a minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or service spacer for circuit board mounting assemblies using No. 2 screw fasteners in standard inch-measurement configurations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by electronics technicians or qualified electricians during control board assembly or replacement. De-energize all equipment and follow applicable NEC guidelines before working inside any electrical enclosure. Use a No. 2 screw of appropriate length to account for the full 1.25 inch standoff height plus board and mounting surface thickness. Avoid over-torquing into the unthreaded female bore, as brass can deform under excessive fastener load.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASTM B633, QQ-B-626 Comp 22 Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Female Unthreaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Size\u003c\/strong\u003e: No. 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.25 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: 0.089 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: 0.1875 inches\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\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: S357M01F21C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51751147733298,"sku":"S357M01F21C","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_d4f13ada-eaf9-4a60-a68c-26536de269a3.jpg?v=1788921880","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s357m01f21c-round-pcb-spacer-brass","provider":"Voomi Supply","version":"1.0","type":"link"}