{"product_id":"machine-screws-phil-flat-steel-black-zinc-4-40-x-3-16_0403mpubzkc","title":"#4-40 X 3\/16\" Machine Screws | Flat Head | Phillips Drive | Steel Black Zinc (10000\/Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eMachine Screws Phil Flat Steel Black Zinc 4-40 x 3\/16 are engineered for precise, reliable fastening in metal assemblies. Made from flat steel and finished with a black zinc coating, these screws resist corrosion while delivering a clean, low-profile look. With a 4-40 thread and 3\/16 inch length, they’re ideal for light- to medium-duty applications in electronics, enclosures, chassis, and panel mounting.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Flat steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Black zinc coating for durability and corrosion resistance\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread size:\u003c\/b\u003e 4-40\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 3\/16 inch\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCommon uses:\u003c\/b\u003e Electronics, enclosures, chassis, and panel mounting\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose these machine screws for dependable performance in tight spaces where a secure, unobtrusive fastener is required. They combine strength, longevity, and a sleek finish that blends with metal hardware and enclosures.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50344670560535,"sku":"0403MPUBZKC","price":456.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/3116MPFBZKC_7890be52-b600-4072-bcfb-b318573f1052.webp?v=1747422940","url":"https:\/\/mutualscrew.com\/products\/machine-screws-phil-flat-steel-black-zinc-4-40-x-3-16_0403mpubzkc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}