{"product_id":"electro-hardware-ms1001m01f21d-circuit-board-spacer-m3","title":"Electro Hardware MS1001M01F21D Circuit Board Spacer M3","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MS1001M01F21D is a round, female unthreaded circuit board spacer designed for M3 screw applications in PCB assembly and electronics mounting. The spacer measures 1.00 mm overall length with a 6.00 mm outside diameter and an inside diameter ranging from 3.20 to 3.60 mm. Constructed from brass and finished with zinc plating per ASTM B633 and QQ-B-626 Comp 22 Type 1, it delivers corrosion resistance and dimensional stability in precision circuit board stacking applications. Electronics assembly technicians and PCB fabricators use this spacer to maintain consistent board-to-board or board-to-chassis standoff clearance in tight metric installations.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for use in residential and commercial electronics assemblies, control boards, and instrumentation panels where M3 metric hardware is specified. Its compact 1.00 mm length makes it appropriate for low-profile PCB mounting scenarios where minimal standoff is required. The metric dimensioning and brass construction make it a common choice in both OEM manufacturing and field-service repair of control electronics found in HVAC, industrial, and electrical enclosure applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale unthreaded design accepts M3 screws for straightforward PCB mounting\u003c\/li\u003e\n  \u003cli\u003e1.00 mm overall length with a length tolerance of -0.130 to 0.130 mm for precise stacking\u003c\/li\u003e\n  \u003cli\u003eInside diameter range of 3.20 to 3.60 mm with a tolerance of 0.000 to 0.270 mm\u003c\/li\u003e\n  \u003cli\u003e6.00 mm outside diameter provides stable seating on circuit board surfaces\u003c\/li\u003e\n  \u003cli\u003eBrass body with zinc-plated finish meets ASTM B633 and QQ-B-626 Comp 22 Type 1 standards\u003c\/li\u003e\n  \u003cli\u003eRound body shape and metric dimensioning suit compact, high-density PCB layouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation spacer for circuit board assemblies requiring M3 metric screw hardware and a female unthreaded standoff with a 6.00 mm outside diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics assembly technicians or electricians working on control board assemblies. Power down and de-energize all circuits before servicing any PCB or control enclosure. Use appropriate M3 metric screwdrivers or nut drivers and avoid over-torquing, as brass spacers can deform under excessive clamping force. Follow applicable NEC guidelines when working within 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\u003eThread Size\u003c\/strong\u003e: M3\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: 1.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.130 to 0.130 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 3.20 to 3.60 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: 0.000 to 0.270 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.00192 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\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\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: MS1001M01F21D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51745897087282,"sku":"MS1001M01F21D","price":20.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ebd8695a24e2b6532e3d3f30a7e1347f_df226428-8943-4275-8362-2ca3ba04212e.jpg?v=1788865677","url":"https:\/\/voomisupply.com\/products\/electro-hardware-ms1001m01f21d-circuit-board-spacer-m3","provider":"Voomi Supply","version":"1.0","type":"link"}