{"product_id":"electro-hardware-4105m07f16-captive-screw-4-40-unc","title":"Electro Hardware 4105M07F16 Captive Screw 4-40 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ELECTRO HARDWARE 4105M07F16 is a slotted-drive captive screw designed for secure panel fastening in assemblies where screw retention is required. Threaded to 4-40 UNC standards, this fastener features a 29\/32-inch length under head and is manufactured from 18-8 stainless steel in an uncoated finish. The captive design prevents the screw from being fully removed during service, reducing the risk of dropped hardware in tight enclosures or rack-mounted equipment. With a head diameter of 5\/16 inches and a head height of 3\/16 inches, this screw suits compact panel applications where clearance is limited. Installation is straightforward for electrical and electronics technicians working with standard slotted drivers.\u003c\/p\u003e\u003cp\u003eThis captive screw is suited for use in electrical enclosures, control panels, rack assemblies, and light industrial equipment where 4-40 UNC threaded fasteners are specified. The 18-8 stainless steel construction provides corrosion resistance appropriate for indoor and light-duty applications. Technicians replacing or retrofitting panel hardware in HVAC control boxes, electrical cabinets, and similar assemblies will find this fastener a direct fit where 4-40 UNC slotted captive screws are called out by the OEM.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCaptive design retains screw during disassembly, preventing loss in tight enclosures\u003c\/li\u003e\n\u003cli\u003e4-40 UNC thread standard for broad compatibility with standard tapped panels\u003c\/li\u003e\n\u003cli\u003e29\/32-inch length under head for moderate panel stack depths\u003c\/li\u003e\n\u003cli\u003e18-8 stainless steel construction for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for indoor panel and enclosure applications\u003c\/li\u003e\n\u003cli\u003eMeets QQ-S-763 specification for stainless steel fasteners\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement captive screw for assemblies specifying a 4-40 UNC slotted-drive fastener with 29\/32-inch length under head.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and removal should be performed by a qualified technician using a standard flat-blade screwdriver sized to the slotted head. De-energize any panel or enclosure before servicing fasteners on live electrical equipment in accordance with applicable NEC lockout\/tagout procedures. Ensure the mating tapped hole is clean and free of debris before engaging the thread to avoid cross-threading the 4-40 UNC fastener.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Slotted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 29\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.3125 inches (5\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 18-8 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: QQ-S-763\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02296 pounds\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: 4105M07F16\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ELECTRO HARDWARE","offers":[{"title":"Default Title","offer_id":51741323395378,"sku":"4105M07F16","price":77.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/093a2936ba94d70aadafecd2e3321341.jpg?v=1788830781","url":"https:\/\/voomisupply.com\/products\/electro-hardware-4105m07f16-captive-screw-4-40-unc","provider":"Voomi Supply","version":"1.0","type":"link"}