{"product_id":"electro-hardware-1313m09f16440-hex-standoff-4-40","title":"Electro Hardware 1313M09F16440 Hex Standoff 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE 1313M09F16440 is a male-female hex circuit board standoff designed to create precise, fixed spacing between stacked PCBs or between a board and a chassis. Machined from 303 stainless steel with a passivated finish per QQ-S-763, this standoff delivers corrosion resistance and dimensional consistency critical in electronics assembly. The body measures 0.5 inches in overall length with a 3\/16 inch width across flats, a 1\/4 inch female thread depth, and a 3\/16 inch male thread length. The 4-40 unified coarse thread is standard in low-voltage electronics and instrumentation. Licensed electricians, electronics assemblers, and controls technicians install these fasteners in board-level assembly work.\u003c\/p\u003e\n\u003cp\u003eThis standoff is suited for residential and commercial control panel builds, HVAC control board installations, industrial electronics enclosures, and any application requiring repeatable board-to-board or board-to-chassis separation. The hex body profile allows tightening with standard nut drivers or hex wrenches, making it practical in tight PCB layouts where finger-tightening is insufficient. The passivated stainless construction also makes it appropriate for light industrial and outdoor enclosure environments where mild corrosion exposure is a concern.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMale-female hex configuration provides one-piece through-stack standoff stacking capability\u003c\/li\u003e\n  \u003cli\u003e303 stainless steel construction with passivated finish per QQ-S-763 for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e4-40 thread size is the most common thread standard in PCB and controls assembly\u003c\/li\u003e\n  \u003cli\u003e0.5 inch overall body length with tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch hex body width across flats fits standard nut drivers used in electronics assembly\u003c\/li\u003e\n  \u003cli\u003eHex body shape prevents rotation during installation without requiring a secondary hold tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 male-female hex PCB standoff for use in circuit board assemblies, control enclosures, and electronics mounting applications requiring 0.5 inch board separation with 4-40 threaded hardware.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by electronics assemblers, controls technicians, or licensed electricians working on panel or board-level assemblies. Power down and de-energize all circuits before servicing any control board or enclosure. Use a properly sized nut driver matched to the 3\/16 inch hex flats to avoid rounding the standoff body. Do not overtighten — apply only enough torque to seat the threads without stressing the PCB substrate.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Male and Female\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Body Length\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFemale Thread Depth\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMale Thread Length\u003c\/strong\u003e: 0.1875 inches (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: 303 Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Passivated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\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  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\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: 1313M09F16440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51750016975154,"sku":"1313M09F16440","price":20.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/262bb1863a77eb487200538a9c8a86a5.jpg?v=1788913142","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1313m09f16440-hex-standoff-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}