{"product_id":"machine-screws-phil-flat-steel-black-oxide-4-40-x-3-8_0406mpubkc","title":"#4-40 X 3\/8\" Machine Screws | 82 Degree Flat Undercut Head | Phillips Drive | Steel Black Oxide (10000\/Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for high‑volume projects, our [10000 BULK] Machine Screws Phil 82 Degree Flat Undercut Steel Black Oxide 4-40 X 3\/8 deliver consistent, dependable performance for metal assemblies. This bulk pack is designed to simplify large builds, replacements, and standardization across teams that demand quality fasteners in bulk.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eBulk quantity:\u003c\/b\u003e 10,000 screws per bulk pack for ready supply on large jobs\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHead type:\u003c\/b\u003e \u003ci\u003ePhillips\u003c\/i\u003e flat countersunk head with an 82‑degree undercut for flush seating\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; finish:\u003c\/b\u003e Steel with a \u003cb\u003eBlack Oxide\u003c\/b\u003e finish for durability and a sleek appearance\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread size \u0026amp; length:\u003c\/b\u003e \u003cb\u003e#4-40\u003c\/b\u003e thread, \u003cb\u003e3\/8 in\u003c\/b\u003e length for precise, compact fastening\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication suitability:\u003c\/b\u003e Ideal for electronics enclosures, metal panels, machinery assemblies, and other light to medium-duty fastenings\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eThread:\u003c\/b\u003e \u003cb\u003e#4-40 UNC\u003c\/b\u003e\n\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e \u003cb\u003e3\/8 in\u003c\/b\u003e (approx. 9.5 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHead style:\u003c\/b\u003e \u003cb\u003ePhillips flat countersunk\u003c\/b\u003e with 82‑degree undercut\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Black Oxide\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eQuantity:\u003c\/b\u003e 10,000 per bulk pack\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThese machine screws are designed to provide a secure, flush fit in panels and components where a low-profile head is essential. The combination of a Phillips drive, 82‑degree countersank, and undercut ensures reliable seating and reduces the risk of stripping in high‑demand environments. Use them to standardize fastener types across projects and keep your workshop stocked with dependable hardware.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eWhy choose these bulk machine screws?\u003c\/b\u003e They offer consistent sizing, corrosion‑resistant finish, and a practical combination of drive type and head geometry that suits a wide range of metal applications. Perfect for manufacturing, repair, and DIY projects where quality, availability, and value matter.\u003c\/p\u003e \u003cp\u003eStock up now and streamline your fastener inventory with these bulk machine screws designed for reliability and everyday performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50344665350423,"sku":"0406MPUBKC","price":580.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/3116MPFBKC_1ded8a56-499e-4e75-9e78-1e2bc8c7d5da.webp?v=1747422946","url":"https:\/\/mutualscrew.com\/products\/machine-screws-phil-flat-steel-black-oxide-4-40-x-3-8_0406mpubkc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}