{"product_id":"electro-hardware-1447m09f16-440-hex-standoff-4-40","title":"Electro Hardware 1447M09F16-440 Hex Standoff 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE 1447M09F16-440 is a male-female hex circuit board standoff designed to space and secure printed circuit boards within enclosures and electronic assemblies. Machined from 18-8 and Grade 303 stainless steel with an anodized finish, this standoff meets QQ-S-763 fastener standards. It features a 4-40 thread size, an overall length of 1.0625 inches, a body length of 0.875 inches, and a hex body measuring 0.25 inches across flats. The male end threads into a mounting surface or lower board while the female end accepts a machine screw from the board above, creating a rigid, measured standoff stack. Electricians, electronics technicians, and control board assemblers typically install these during panel builds and PCB mounting work.\u003c\/p\u003e\n\u003cp\u003eThis standoff is used in residential and commercial electronic enclosures, HVAC control panels, and industrial PCB assemblies wherever boards must be mounted at a fixed, controlled height above a chassis or another board. The 4-40 thread is a standard size across a wide range of control board mounting applications. The stainless steel construction and anodized finish resist corrosion, making this fastener suitable for environments where moisture or chemical exposure is a concern. It is sold individually and is suited for both original builds and maintenance replacement work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMale-female hex configuration allows stacking of circuit boards at a controlled standoff height\u003c\/li\u003e\n  \u003cli\u003e4-40 thread size is widely compatible with standard PCB mounting hole patterns\u003c\/li\u003e\n  \u003cli\u003e18-8 and Grade 303 stainless steel construction for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eAnodized finish provides additional surface protection\u003c\/li\u003e\n  \u003cli\u003eMeets QQ-S-763 federal specification for stainless steel fasteners\u003c\/li\u003e\n  \u003cli\u003eLength tolerance held to -0.005 to 0.005 inches for precise board spacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation fastener for circuit board assemblies using 4-40 machine screw thread patterns in standard hex standoff configurations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics technicians or licensed electricians during control board assembly or replacement. De-energize all circuits and discharge any capacitors before working inside an enclosure. Use a properly sized hex driver or nut driver matching the 0.25-inch flats to avoid rounding the hex body. Do not over-torque the male threaded end into the mounting surface, as stainless fasteners are susceptible to galling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Male\/Female\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.0625 inches (1-1\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.875 inches (7\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.25 inches (1\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 3\/16 inch\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\u003eBody Shape\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel, 18-8 and Grade 303\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Anodized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: QQ-S-763\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\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: 1447M09F16-440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51743191892274,"sku":"1447M09F16-440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/354e84e78593c87d91054c55b2ccfd1d_49c450a2-85b3-4005-b3e9-c0482c42f272.jpg?v=1788843768","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1447m09f16-440-hex-standoff-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}