{"product_id":"socket-head-cap-screws-alloy-steel-thermal-black-oxide-4-40-x-5-8_0410cspkc","title":"#4-40 X 5\/8\" Socket Head Cap Screws | Alloy Steel Black Oxide (1 \/ Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for durability and precision, our Socket Head Cap Screws in Alloy Steel with a Thermal Black Oxide finish deliver reliable performance in demanding applications. Precision-threaded and corrosion-resistant, these fasteners are sized 4-40 with a 5\/8 inch length, ideal for compact assemblies and tight tolerances.\u003c\/p\u003e \u003ch3\u003eProduct Details\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eFastener Type:\u003c\/b\u003e Socket Head Cap Screw\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Alloy Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Thermal Black Oxide\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 5\/8 inch\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose these socket head cap screws? The alloy steel construction provides excellent strength-to-weight ratio, while the thermal black oxide finish adds corrosion resistance and a sleek, low-profile appearance. The 4-40 thread is a common choice for small machinery, electronics enclosures, and precision assemblies, ensuring secure clamping with minimal backlash.\u003c\/p\u003e \u003cp\u003eApplications: automotive, mechanical assemblies, electronics enclosures, hobbies, and maintenance projects where durability and a compact fastener are essential.\u003c\/p\u003e \u003cp\u003eShop with confidence—our socket head cap screws are manufactured to tight tolerances to ensure consistent fit and performance across batches.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50366299406615,"sku":"0410CSPKC","price":13.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/00002CSP_87b0c820-2086-4cf6-886c-3bd8ee75f34b.jpg?v=1747423109","url":"https:\/\/mutualscrew.com\/products\/socket-head-cap-screws-alloy-steel-thermal-black-oxide-4-40-x-5-8_0410cspkc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}