{"product_id":"electro-hardware-s1407-m10-f21-k-circuit-board-spacer","title":"Electro Hardware S1407-M10-F21-K Circuit Board Spacer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE S1407-M10-F21-K is a round, female unthreaded circuit board spacer manufactured from Grade 2 steel with a zinc-plated finish. It is designed to maintain a fixed standoff distance between a printed circuit board and a mounting surface, preventing electrical shorts and providing structural support within an enclosure. The spacer measures 1.25 inches in overall length, accepts a 1\/4 inch screw, and has an outside diameter of 0.5 inches and an inside diameter of 0.257 inches. It meets ASTM B633 and QQ-S-633 Type 1 finish standards. Electricians, control panel builders, and electronics technicians install this type of hardware during board mounting and enclosure assembly work.\u003c\/p\u003e\n\u003cp\u003eThis spacer is suited for use in residential and commercial electrical panel assemblies, HVAC control board installations, and industrial enclosure builds wherever a secure, insulated standoff is required between a circuit board and a metal or non-metal mounting surface. The female unthreaded design accepts a standard 1\/4 inch fastener passed through the board from above. Its zinc plating provides corrosion resistance in typical indoor panel environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 2 steel construction meets ASTM B633 and QQ-S-633 Type 1 finish standards\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides corrosion resistance for indoor panel applications\u003c\/li\u003e\n  \u003cli\u003eFemale unthreaded body accepts 1\/4 inch screw for secure through-fastening\u003c\/li\u003e\n  \u003cli\u003eOverall length of 1.25 inches provides consistent standoff between board and mounting surface\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 0.5 inches with inside diameter of 0.257 inches and tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eRound body shape for standard circuit board mounting hole patterns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard OEM-style circuit board spacer for use with 1\/4 inch screw fasteners in residential, commercial, and industrial circuit board mounting applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed electricians or qualified panel technicians. De-energize and lockout the enclosure or panel before installing or replacing circuit board hardware. Verify that the screw length used does not extend beyond the spacer in a way that contacts adjacent components or enclosure walls. Follow applicable NEC guidelines for panel and enclosure assembly when securing control boards.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 2\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-S-633 Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.25 inches\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\u003eOutside Diameter\u003c\/strong\u003e: 0.5 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\u003eInside Diameter Tolerance\u003c\/strong\u003e: 0.000 to 0.010 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inch\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\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: S1407-M10-F21-K\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51740756148530,"sku":"S1407-M10-F21-K","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/eeff0af42a062515c1b8914114e4e6c9.jpg?v=1788827225","url":"https:\/\/voomisupply.com\/products\/electro-hardware-s1407-m10-f21-k-circuit-board-spacer","provider":"Voomi Supply","version":"1.0","type":"link"}