{"product_id":"electro-hardware-p437m19f16440-hex-standoff-4-40-2-5in-nylon","title":"Electro Hardware P437M19F16440 Hex Standoff 4-40 2.5in Nylon","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE P437M19F16440 is a female hex circuit board standoff designed to mount and space printed circuit boards within electronic enclosures, control panels, and equipment assemblies. Machined from nylon with a plain, uncoated finish, this standoff threads onto a 4-40 fastener and provides a secure female receiving thread for the mating screw. The overall length is 2.5 inches, making it well suited for applications requiring a longer board-to-surface standoff distance. It carries a tensile strength rating of 16,500 psi, meeting the dimensional and material requirements of MIL-P-17091B. Electronic assembly technicians and panel builders install this hardware during board mounting operations in both commercial and industrial settings.\u003c\/p\u003e\u003cp\u003eThis standoff is used wherever a 4-40 thread pattern is required to elevate and secure a circuit board above a chassis, panel, or sub-plate. The 3\/16-inch hex body width across flats allows standard hex driver tooling for installation and removal. With a thread depth of 1\/4 inch, it accepts typical 4-40 machine screws used in PCB mounting applications. The nylon construction provides electrical isolation between the board and the mounting surface, which is a common requirement in control board and low-voltage electronics assemblies across HVAC, electrical, and industrial equipment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFemale 4-40 thread on both ends for board-to-surface mounting\u003c\/li\u003e\n\u003cli\u003e2.5-inch overall length provides extended board standoff clearance\u003c\/li\u003e\n\u003cli\u003eNylon material grade 101 offers electrical isolation and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eHex body at 3\/16 inches width across flats accepts standard hex drivers\u003c\/li\u003e\n\u003cli\u003eMeets MIL-P-17091B fastener standard for dimensional compliance\u003c\/li\u003e\n\u003cli\u003ePlain, uncoated finish with tensile strength of 16,500 psi\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in any application requiring a 4-40 female hex nylon standoff with a 2.5-inch overall length and MIL-P-17091B compliance, including PCB mounting in electronic control panels and equipment enclosures.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eElectronic assembly technicians and electricians install this standoff using a standard hex driver sized for 3\/16-inch flats. De-energize all circuits and discharge any capacitors before working on circuit board assemblies. Avoid over-torquing, as nylon hardware has lower torque thresholds than metal standoffs and can crack or strip under excessive force. Follow applicable NEC guidelines when installing standoffs within electrical enclosures.\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\u003eThread Depth\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 0.1875 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: Nylon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 101\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile Strength\u003c\/strong\u003e: 16,500 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Plain, Uncoated\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: MIL-P-17091B\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\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: P437M19F16440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51728843211058,"sku":"P437M19F16440","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/69be0ea513ec4cbce20afd5016302ef1_df657506-4aac-4d6e-ab16-5328af9fb910.jpg?v=1788696678","url":"https:\/\/voomisupply.com\/products\/electro-hardware-p437m19f16440-hex-standoff-4-40-2-5in-nylon","provider":"Voomi Supply","version":"1.0","type":"link"}