{"product_id":"electro-hardware-ms1017m01f21f-circuit-board-spacer-m4","title":"Electro Hardware MS1017M01F21F Circuit Board Spacer M4","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE MS1017M01F21F is a round, female unthreaded circuit board spacer designed to provide precise standoff spacing between a PCB and a mounting surface or adjacent board. Machined from brass and finished with a zinc plating per ASTM B633 and QQ-B-626 Comp 22 Type 1, this spacer delivers corrosion resistance alongside the dimensional consistency required in electronics assembly and control board installations. The spacer measures 9 mm overall length, with an outside diameter of 6 mm and an inside diameter ranging from 4.2 to 4.8 mm, sized for M4 hardware. It is installed by electronics technicians, automation integrators, and HVAC or electrical control-panel assemblers.\u003c\/p\u003e\u003cp\u003eThis spacer is suited for use in control panel assemblies, PCB mounting applications, and electronic enclosures where repeatable standoff height and secure board positioning are required. The metric sizing and female unthreaded design make it appropriate for a wide range of light commercial and industrial electronic assembly environments. Installers working with M4 fastener systems will find the dimensional tolerances consistent with precision board-mounting requirements.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFemale unthreaded design accepts M4 screw hardware for straightforward PCB standoff assembly\u003c\/li\u003e\n\u003cli\u003eBrass construction with zinc plating per ASTM B633 and QQ-B-626 Comp 22 Type 1 for corrosion resistance\u003c\/li\u003e\n\u003cli\u003e9 mm overall length with a tight length tolerance of -0.13 to 0.13 mm for consistent standoff height\u003c\/li\u003e\n\u003cli\u003e6 mm outside diameter and 4.2 to 4.8 mm inside diameter with inside diameter tolerance of 0.000 to 0.270 mm\u003c\/li\u003e\n\u003cli\u003eRound body shape for uniform load distribution on PCB mounting points\u003c\/li\u003e\n\u003cli\u003eMetric dimensioning for compatibility with M4 fastener systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard metric M4 circuit board spacer suitable for PCB standoff applications requiring a female unthreaded round spacer with a 9 mm overall length and 6 mm outside diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by electronics technicians or control-panel assemblers using standard hand tools. Power down and de-energize any circuit board assembly fully before installing or replacing spacers. Do not overtighten M4 fasteners through the spacer bore, as brass is subject to deformation under excessive clamping force. Follow applicable assembly standards and IPC guidelines for PCB mounting hardware installation.\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\u003eScrew Size\u003c\/strong\u003e: M4\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: 9 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.13 to 0.13 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4.2 to 4.8 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\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.00552 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161816\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: MS1017M01F21F\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51735244833074,"sku":"MS1017M01F21F","price":22.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ebd8695a24e2b6532e3d3f30a7e1347f_8081faf7-161a-42f3-888a-75451bf1c212.jpg?v=1788770843","url":"https:\/\/voomisupply.com\/products\/electro-hardware-ms1017m01f21f-circuit-board-spacer-m4","provider":"Voomi Supply","version":"1.0","type":"link"}