{"product_id":"electro-hardware-s1339-m01-f21-k-circuit-board-spacer","title":"Electro Hardware S1339-M01-F21-K Circuit Board Spacer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S1339-M01-F21-K is a round, female unthreaded circuit board spacer designed to maintain precise standoff clearance between a PCB and a mounting surface. Machined from brass and finished with a zinc plating that meets ASTM B633 and QQ-B-626 Comp 22 Type 1 standards, this spacer measures 3\/16 inches in overall length with a 1\/2 inch outside diameter and a 0.257 inch inside diameter sized to accept a 1\/4 inch screw. It is used by electronics assemblers, HVAC controls technicians, and electrical panel fabricators wherever a reliable, corrosion-resistant board standoff is required.\u003c\/p\u003e\n\u003cp\u003eThis spacer fits residential and commercial control board assemblies, HVAC circuit board mounting applications, and general electronics enclosure builds. The 1\/4 inch thread size is a common fastener standard in control board and panel work, making this spacer a straightforward fit in a wide range of assembly configurations. It ships individually and is suited for both new installations and field-replacement of worn or damaged standoffs on existing boards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale unthreaded body accepts a 1\/4 inch screw for secure board standoff mounting\u003c\/li\u003e\n  \u003cli\u003eBrass construction with zinc plating meets ASTM B633 and QQ-B-626 Comp 22 Type 1 finish standards\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch overall length with tight length tolerance of -0.005 to 0.005 inches ensures consistent board-to-surface spacing\u003c\/li\u003e\n  \u003cli\u003e0.257 inch inside diameter with a tolerance of 0.000 to 0.010 inches for reliable fastener fit\u003c\/li\u003e\n  \u003cli\u003eRound body shape with 1\/2 inch outside diameter for stable contact footprint on the board surface\u003c\/li\u003e\n  \u003cli\u003eInch measurement system; compatible with standard imperial fastener tooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-build component for circuit board assemblies requiring a 1\/4 inch female unthreaded round spacer with a 3\/16 inch standoff height.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics assemblers or controls technicians. Always power down and de-energize the control board or panel before removing or installing standoff hardware. Use hand tools sized for the 1\/4 inch fastener to avoid damaging the brass body or the board mounting hole. Inspect mating surfaces for burrs or debris before seating the spacer to ensure proper length tolerance is maintained.\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\u003eOverall Length\u003c\/strong\u003e: 3\/16 inches (0.1875 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\u003eOutside Diameter\u003c\/strong\u003e: 1\/2 inches (0.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inches\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\u003eLength Tolerance\u003c\/strong\u003e: -0.005 to 0.005 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\u003eFastener Standard\u003c\/strong\u003e: ASTM B633, QQ-B-626 Comp 22 Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 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: S1339-M01-F21-K\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51742313349426,"sku":"S1339-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_4bcf36d0-762d-4eb8-b81c-f3558faf51bd.jpg?v=1788836684","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s1339-m01-f21-k-circuit-board-spacer","provider":"Voomi Supply","version":"1.0","type":"link"}