{"product_id":"electro-hardware-1451m09f16-440-hex-standoff-4-40","title":"Electro Hardware 1451M09F16-440 Hex Standoff 4-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE 1451M09F16-440 is a male-female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from 18-8 and 303 stainless steel with an anodized finish, this standoff meets the QQ-S-763 fastener standard. It features a 4-40 thread size with a 1\/4-inch thread depth on the female end and a 3\/16-inch thread length on the male end. The hex body measures 1\/4 inch across flats and has a body length of 1 inch, with an overall length of 1-3\/16 inches (1.1875 inches). Electricians, electronics technicians, and panel builders install these standoffs during board mounting and enclosure assembly work.\u003c\/p\u003e\u003cp\u003eThis standoff is used in circuit board mounting applications where a controlled, secure standoff height is required between stacked PCBs or between a board and a chassis panel. The male-female configuration allows multiple standoffs to be threaded together or used in series for board stacking. Typical applications include control panel builds, industrial electronics enclosures, and HVAC control board assemblies. The stainless steel construction makes it suitable for environments where corrosion resistance is a factor.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMale-female hex configuration supports board stacking and chassis mounting\u003c\/li\u003e\n\u003cli\u003e4-40 thread size with 1\/4-inch female thread depth and 3\/16-inch male thread length\u003c\/li\u003e\n\u003cli\u003e18-8 and 303 stainless steel construction with anodized finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eOverall length of 1.1875 inches with a length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n\u003cli\u003eHex body shape with 1\/4-inch width across flats for standard wrench or socket installation\u003c\/li\u003e\n\u003cli\u003eMeets QQ-S-763 fastener standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation standoff for circuit board assemblies using 4-40 threaded hardware in inch-measurement systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePower down all equipment completely before installing or removing circuit board standoffs. Use an appropriately sized hex wrench or nut driver sized for 1\/4-inch across flats to avoid rounding the hex body. Do not overtighten, as stainless fasteners in threaded assemblies can gall if torque is excessive. Follow applicable electrical codes and manufacturer board-mounting guidelines when assembling control panels or electronic enclosures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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-Female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.1875 inches (1-3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length (Male)\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Depth (Female)\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\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, Grade 18-8 and 303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Anodized\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\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\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 1451M09F16-440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51741059940658,"sku":"1451M09F16-440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fd170aab33066398fed34a6c8efde94.jpg?v=1788829150","url":"https:\/\/voomisupply.com\/products\/electro-hardware-1451m09f16-440-hex-standoff-4-40","provider":"Voomi Supply","version":"1.0","type":"link"}