{"product_id":"electro-hardware-p577m04f16-440-round-female-standoff","title":"Electro Hardware P577M04F16-440 Round Female Standoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ELECTRO HARDWARE P577M04F16-440 is a round female standoff designed to create fixed spacing between printed circuit boards, panels, and chassis components in electronic assemblies. Machined from aluminum alloy to material grade T-3 and finished bright with an anodized coating, this standoff meets the QQ-A-225A Comp 2 fastener standard. It features a 4-40 female thread with a full 1 inch thread depth, an overall length of 1.25 inches, and an outside diameter of 0.25 inches. The fully threaded interior accommodates 4-40 screws or studs on both ends, making it a straightforward choice for stacking or mounting tasks in tight enclosures.\u003c\/p\u003e\n\u003cp\u003eThis standoff is used in PCB assembly, control panel fabrication, and enclosure builds across electrical, electronics manufacturing, and light industrial applications. It is suited for residential and commercial control boards, instrument panels, and any low-voltage or signal-level assembly where precise board-to-board or board-to-chassis standoff height is required. Electricians, electronics technicians, and panel builders commonly specify this style of standoff when assembling or servicing control enclosures and DIN-rail mounted components.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 female thread, fully threaded to 1 inch depth for maximum fastener engagement\u003c\/li\u003e\n  \u003cli\u003eOverall length of 1.25 inches with a tight length tolerance of -0.005 to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 0.25 inches  -  compact profile for dense board layouts\u003c\/li\u003e\n  \u003cli\u003eAluminum construction, material grade T-3, with bright anodized finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eMeets QQ-A-225A Comp 2 fastener standard\u003c\/li\u003e\n  \u003cli\u003eRound body shape for consistent wrench or socket engagement during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation standoff for electronic assemblies requiring a 4-40 threaded female hex or round standoff with a 1.25 inch overall length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by electronics technicians or panel builders using a small hex driver or open-end wrench sized to the 0.25 inch outside diameter. De-energize and discharge all circuits before working inside any control enclosure or PCB assembly. Avoid over-torquing into aluminum threads, as the material is softer than steel and susceptible to thread stripping under excessive force. Follow applicable NEC guidelines when installing standoffs inside listed electrical enclosures.\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\u003eThread Depth\u003c\/strong\u003e: 1 inch (fully threaded)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Round\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\u003eMaterial\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: T-3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright Anodized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: QQ-A-225A Comp 2\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: P577M04F16-440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51743826510130,"sku":"P577M04F16-440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24a5d05114a707e7b06a2620b31fbd67_05325cc1-3000-429e-8f9a-47f881eb6d10.jpg?v=1788850104","url":"https:\/\/voomisupply.com\/products\/electro-hardware-p577m04f16-440-round-female-standoff","provider":"Voomi Supply","version":"1.0","type":"link"}