{"product_id":"electro-hardware-ms1013m01f21f-circuit-board-spacer-m4","title":"Electro Hardware MS1013M01F21F Circuit Board Spacer M4","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE MS1013M01F21F is a round, female unthreaded circuit board spacer designed for M4 screw applications in printed circuit board assemblies. Machined from brass and finished with zinc plating per ASTM B633 and QQ-B-626 Comp 22 Type 1, this spacer provides reliable standoff height and electrical isolation between board layers or between a board and a mounting surface. It measures 7 mm overall length with a 6 mm outside diameter and an inside diameter ranging from 4.2 mm to 4.8 mm. Electronics assembly technicians and electrical contractors use this hardware in control boards, panel assemblies, and industrial enclosures where a secure, corrosion-resistant standoff is required.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for metric-fastener circuit board assemblies in residential and commercial control panels, HVAC control boards, electrical enclosures, and similar low-voltage electronics applications. Its compact round body and standard M4 thread sizing make it appropriate for production-line PCB builds and field-service board replacements where consistent standoff height and tight length tolerances are critical to proper board fitment and clearance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBrass body with zinc plating meets ASTM B633 and QQ-B-626 Comp 22 Type 1 standards\u003c\/li\u003e\n  \u003cli\u003eFemale unthreaded bore accepts M4 screws for secure board mounting\u003c\/li\u003e\n  \u003cli\u003e7 mm overall length with tight length tolerance of -0.13 mm to 0.13 mm\u003c\/li\u003e\n  \u003cli\u003e6 mm outside diameter with inside diameter range of 4.2 mm to 4.8 mm\u003c\/li\u003e\n  \u003cli\u003eRound body shape provides consistent standoff and stable board support\u003c\/li\u003e\n  \u003cli\u003eZinc finish adds corrosion resistance for panel and enclosure environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style metric spacer for circuit board assemblies using M4 fasteners in control panels, electrical enclosures, and electronics mounting applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics assembly technicians or licensed electricians. De-energize all circuits and discharge any capacitors before servicing control boards or panel assemblies. Use calibrated M4 fasteners and a torque-appropriate screwdriver to avoid cracking the board or deforming the spacer. Follow applicable NEC guidelines when working inside energized 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\u003eFastener Standard\u003c\/strong\u003e: ASTM B633, QQ-B-626 Comp 22 Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread 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: 7 mm (approximately 0.276 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.13 mm to 0.13 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6 mm (approximately 0.236 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4.2 mm to 4.8 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: 0.000 mm 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: 0.00464 pounds\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: MS1013M01F21F\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51729010590002,"sku":"MS1013M01F21F","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ebd8695a24e2b6532e3d3f30a7e1347f_e9626384-3bc8-4486-b40d-42ed8f990872.jpg?v=1788698799","url":"https:\/\/voomisupply.com\/products\/electro-hardware-ms1013m01f21f-circuit-board-spacer-m4","provider":"Voomi Supply","version":"1.0","type":"link"}