{"product_id":"machine-screws-slotted-undercut-flat-18-8-stainless-4-40-x-3-16_0403msu188kc","title":"#4-40 X 3\/16\" Machine Screws | Undercut Flat Head | Slotted Drive | 18\/8 Stainless Steel (5000\/Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eMachine Screws Slotted Undercut Flat 18\/8 Stainless 4-40 X 3\/16\u003c\/b\u003e are precision-engineered fasteners designed for secure, flush seating in metal-to-metal assemblies, electronics enclosures, and cabinetry. Crafted from 18\/8 stainless steel, these screws combine strength, corrosion resistance, and a reliable slotted drive for easy installation.\u003c\/p\u003e \u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eDesigned for a flush, low-profile fit, the undercut flat head sits securely in countersunk holes while the slotted drive allows straightforward hand or machine installation. The 4-40 thread size and 3\/16 inch length are ideal for thinner panels and delicate assemblies where precision matters.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e 18\/8 stainless steel (304) for excellent corrosion resistance and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDrive:\u003c\/b\u003e Slotted head for compatibility with common screwdrivers and bit drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHead style:\u003c\/b\u003e Undercut flat head provides a flush, strong seating with reduced protrusion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread and size:\u003c\/b\u003e 4-40 thread, 3\/16 inch length sufficient for light-duty, precise fastening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinishing:\u003c\/b\u003e Plain, corrosion-resistant surface suitable for indoor and outdoor environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread size:\u003c\/b\u003e 4-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e 18\/8 stainless steel (304)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHead type:\u003c\/b\u003e Undercut flat head\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDrive:\u003c\/b\u003e Slotted\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for electronics housings, appliance assemblies, metal furniture, cabinetry, and light-duty machinery where a clean, flush appearance and reliable fastener performance are required.\u003c\/p\u003e \u003ch3\u003eWhy 18\/8 Stainless\u003c\/h3\u003e\n\u003cp\u003e18\/8 stainless steel offers superior corrosion resistance, good strength, and a smooth, bright finish that resists staining. It’s a versatile choice for environments that demand longevity and easy maintenance.\u003c\/p\u003e \u003ch3\u003eCare and Maintenance\u003c\/h3\u003e\n\u003cp\u003ePeriodically inspect fasteners for signs of wear or stripping. Use the correct screwdriver to avoid slippage, and avoid overtightening to preserve the stainless steel’s integrity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50345404072215,"sku":"0403MSU188KC","price":245.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/1406MSU188KC_67b2a283-9f55-402b-9f3f-24b505656515.webp?v=1747422620","url":"https:\/\/mutualscrew.com\/products\/machine-screws-slotted-undercut-flat-18-8-stainless-4-40-x-3-16_0403msu188kc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}