{"product_id":"electro-hardware-s1111-m10-f21-h-circuit-board-spacer","title":"Electro Hardware S1111-M10-F21-H Circuit Board Spacer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S1111-M10-F21-H is a round, female unthreaded circuit board spacer designed to maintain consistent standoff distance between a PCB and a mounting surface. Manufactured from Grade 2 steel with a zinc-plated finish per ASTM B633 and QQ-S-633 Type 1, this spacer provides corrosion resistance suitable for electronics assembly and panel mounting applications. It measures 1 inch overall length with a 0.171 inch inside diameter and a 0.375 inch outside diameter, and is sized for a Number 8 screw. Electronics assemblers, panel builders, and electricians use this type of hardware when mounting control boards in HVAC equipment, electrical enclosures, and industrial panels.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for use in residential and light commercial applications wherever a Number 8 fastener is used to mount a circuit board. Typical install scenarios include HVAC control board mounting, electrical panel sub-assemblies, and enclosure PCB standoff applications. The female unthreaded design accepts a screw from one end, spacing the board away from the mounting surface to prevent electrical shorts and allow for airflow. The round body and standardized dimensions make it straightforward to source as a replacement or new-installation component in any control board servicing job.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFemale unthreaded round body sized for Number 8 screw installations\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction meets ASTM B633 and QQ-S-633 Type 1 standards\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides corrosion resistance in enclosure and panel environments\u003c\/li\u003e\n  \u003cli\u003e1 inch overall length with tight length tolerance of -0.005 to 0.005 inch\u003c\/li\u003e\n  \u003cli\u003e0.171 inch inside diameter with 0.000 to 0.010 inch tolerance for consistent fastener fit\u003c\/li\u003e\n  \u003cli\u003eCompact 0.375 inch outside diameter minimizes footprint on densely populated boards\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 mounting applications that require a Number 8 screw, 1 inch standoff height, and a 0.375 inch OD round steel body.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics assemblers, electricians, or HVAC technicians during control board replacement or panel assembly. Always de-energize the equipment and discharge any stored energy before handling circuit boards or installing standoff hardware. Use hand tools appropriate for Number 8 fasteners and avoid overtightening, which can crack the board or distort the spacer. Follow applicable NEC or equipment manufacturer guidelines for board mounting clearances and grounding.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel, Grade 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\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\u003eScrew Size\u003c\/strong\u003e: Number 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: -0.005 to 0.005 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.171 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: 0.000 to 0.010 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.375 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASTM B633, QQ-S-633 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: S1111-M10-F21-H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51742330290482,"sku":"S1111-M10-F21-H","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64ed36ec3a1c33caaf172ec4e8fe95b6_acab16b5-e360-4f23-baa2-0f728654e41a.jpg?v=1788836802","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s1111-m10-f21-h-circuit-board-spacer","provider":"Voomi Supply","version":"1.0","type":"link"}