{"product_id":"electro-hardware-s1343-m01-f21-k-circuit-board-spacer","title":"Electro Hardware S1343-M01-F21-K Circuit Board Spacer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S1343-M01-F21-K is a round, female unthreaded circuit board spacer machined from brass and finished with a zinc plating for corrosion resistance. It measures 0.25 inches in overall length with an outside diameter of 0.5 inches and an inside diameter of 0.257 inches, sized for a 1\/4 inch screw. The zinc-plated brass construction meets ASTM B633 and QQ-B-626 Comp 22 Type 1 standards. Electricians, electronics technicians, and PCB assembly professionals install this spacer to maintain precise board standoff distances and provide electrical isolation between a circuit board and its mounting surface.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for use in control boards, panel assemblies, and electronic enclosures found in residential and commercial HVAC systems, electrical panels, pool equipment controls, and general electronics fabrication. Its compact 1\/4 inch length makes it appropriate for applications where minimal stack height is required and consistent board spacing is critical to preventing shorts and mechanical stress on solder joints.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\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\u003eFemale unthreaded body accepts 1\/4 inch screws for straightforward board mounting\u003c\/li\u003e\n  \u003cli\u003eOverall length of 0.25 inches with a tight length tolerance of -0.005 to 0.005 inches for consistent standoff height\u003c\/li\u003e\n  \u003cli\u003eInside diameter of 0.257 inches with an ID tolerance of 0.000 to 0.010 inches for reliable screw fit\u003c\/li\u003e\n  \u003cli\u003eRound body shape with 0.5 inch outside diameter provides stable bearing surface on the board or chassis\u003c\/li\u003e\n  \u003cli\u003eZinc plating adds corrosion resistance for use in humid or condensate-prone enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard inch-series round circuit board spacer for use with 1\/4 inch fasteners in PCB mounting applications across HVAC controls, electrical enclosures, and electronic equipment assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics technicians or licensed electricians during control board assembly or replacement. De-energize and lock out all power to the equipment before handling circuit boards or installing spacers. Use appropriately sized hand tools to avoid over-torquing fasteners into the unthreaded female body, which can deform the spacer or damage the board. Follow applicable NEC guidelines when working inside electrical enclosures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\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\u003eScrew Size\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.25 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: 0.257 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: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\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\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: S1343-M01-F21-K\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51740566651186,"sku":"S1343-M01-F21-K","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_4e429a3d-d168-4585-8ec6-6219fe75e9fb.jpg?v=1788825979","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s1343-m01-f21-k-circuit-board-spacer","provider":"Voomi Supply","version":"1.0","type":"link"}