{"product_id":"electro-hardware-p509m07f16-440-round-female-standoff","title":"Electro Hardware P509M07F16-440 Round Female Standoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE P509M07F16-440 is a round female standoff designed for use in precision fastening and spacer applications in electronic, electrical, and mechanical assemblies. This standoff features a 4-40 thread size with a 0.1875-inch overall length and a 0.25-inch outside diameter. The body is fully threaded and manufactured from 18-8 grade 303 stainless steel with a bright finish, meeting the QQ-S-763 federal standard for stainless steel hardware. It is a compact, low-profile spacer suited for use in control panels, PCB mounting, enclosures, and other assemblies where secure, corrosion-resistant spacing between components is required.\u003c\/p\u003e\n\u003cp\u003eThis standoff is commonly used in residential and commercial electrical and electronic equipment assemblies, including control board mounting, instrument panel fabrication, and enclosure builds. The 4-40 thread size is a standard designation in light-duty electronics and precision mechanical assembly work. Electricians, electronics technicians, and mechanical assemblers typically install these standoffs in situations requiring repeatable spacing and reliable thread engagement in stainless steel hardware.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 female thread size for standard light-duty electronics applications\u003c\/li\u003e\n  \u003cli\u003eFully threaded body for maximum thread engagement along the 0.5-inch thread depth\u003c\/li\u003e\n  \u003cli\u003e18-8 grade 303 stainless steel construction for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eBright finish meeting QQ-S-763 federal specification\u003c\/li\u003e\n  \u003cli\u003eCompact 3\/16-inch overall length with 1\/4-inch outside diameter for tight-clearance installations\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of -0.005 to 0.005 inches for consistent fitment in precision assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 female round standoff for use in electronic and mechanical assemblies requiring inch-system fasteners and stainless steel hardware meeting QQ-S-763 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics technicians or mechanical assemblers using a hex key or appropriate driver for the 4-40 thread size. Ensure mating screws and threads are clean and free of debris before installation to avoid galling, which is a common risk with stainless steel fasteners. Do not overtighten, as the 4-40 thread is a fine, light-duty designation and susceptible to thread damage under excessive torque.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: 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: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 0.5 inches (1\/2 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel, 18-8 Grade 303\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: QQ-S-763\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\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: P509M07F16-440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51743191826738,"sku":"P509M07F16-440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24a5d05114a707e7b06a2620b31fbd67_8f2b7f20-b32c-441a-be93-00a475ff9043.jpg?v=1788843766","url":"https:\/\/voomisupply.com\/products\/electro-hardware-p509m07f16-440-round-female-standoff","provider":"Voomi Supply","version":"1.0","type":"link"}