{"product_id":"electro-hardware-p577m07f16-440-round-female-standoff","title":"Electro Hardware P577M07F16-440 Round Female Standoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE P577M07F16-440 is a round, fully threaded female standoff designed to create a fixed spacing gap between two mating components in panel, enclosure, and electronics assembly applications. Machined from 18-8 and Grade 303 stainless steel with a bright finish, it meets the QQ-S-763 fastener standard. The standoff features a 4-40 thread size, an overall length of 1.25 inches, an outside diameter of 0.25 inches, and a thread depth of 0.5 inches. These dimensions make it a compact, precise spacer suited for tight board-level layouts or light structural assemblies where corrosion resistance is required.\u003c\/p\u003e\u003cp\u003eThis standoff is used in residential and commercial electrical panel assemblies, control board mounting, electronic enclosures, and general fastener applications where an internally threaded cylindrical spacer is needed. Installers in electrical, HVAC controls, and industrial automation work rely on this style of standoff when mounting PCBs, terminal strips, or sub-panels at a fixed offset from a base surface. The inch-measurement system and 4-40 thread make it compatible with standard inch-series hardware used throughout North American trade and OEM manufacturing.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFully threaded female interior accepts 4-40 fasteners from both ends\u003c\/li\u003e\n\u003cli\u003e18-8 and Grade 303 stainless steel construction for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eBright finish per QQ-S-763 fastener standard\u003c\/li\u003e\n\u003cli\u003eRound body shape with 0.25 inch outside diameter for compact spacing\u003c\/li\u003e\n\u003cli\u003eLength tolerance of -0.005 to 0.005 inches for precise stack-up control\u003c\/li\u003e\n\u003cli\u003eInch-system dimensions compatible with standard North American hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard inch-series female standoff for use with 4-40 threaded fasteners in electrical enclosures, PCB mounting assemblies, and panel fabrication applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by electricians, electronics technicians, or panel fabricators using standard 4-40 screws and appropriate hand tools. De-energize any panel or enclosure before working inside. Do not over-torque the mating fasteners, as the 4-40 thread is fine-pitched and susceptible to stripping under excessive load. Verify thread engagement depth against the 0.5 inch thread depth before specifying fastener length.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 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\u003eThread Depth\u003c\/strong\u003e: 0.5 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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 18-8 and Grade 303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\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: P577M07F16-440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51743344460082,"sku":"P577M07F16-440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24a5d05114a707e7b06a2620b31fbd67_88d6df03-a4d4-4cdf-9b8b-26e82da8dd94.jpg?v=1788845921","url":"https:\/\/voomisupply.com\/products\/electro-hardware-p577m07f16-440-round-female-standoff","provider":"Voomi Supply","version":"1.0","type":"link"}