{"product_id":"socket-head-cap-screws-alloy-steel-thermal-black-oxide-4-40-x-1-2_0408cspkc","title":"#4-40 X 1\/2\" Socket Head Cap Screws | Alloy Steel Black Oxide (1 \/ Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for durable, high-strength fastening in precision assemblies, the Socket Head Cap Screws Alloy Steel Thermal Black Oxide 4-40 X 1\/2 delivers dependable performance in machinery, electronics enclosures, and DIY projects. Crafted from tough alloy steel and finished with a thermally treated black oxide, these screws combine high tensile strength with a smooth, low-gloss surface for clean, professional installations.\u003c\/p\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\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\u003eDrive type:\u003c\/b\u003e Socket hex drive\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 1\/2 in (12.7 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHead type:\u003c\/b\u003e Socket head cap screw\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eHigh strength:\u003c\/b\u003e Alloy steel provides robust load-bearing capability for demanding assemblies.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSmooth operation:\u003c\/b\u003e Precisely machined threads reduce friction for reliable torque and clamping force.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLow-profile finish:\u003c\/b\u003e Black oxide finish minimizes glare and aids corrosion resistance in moderate environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVersatile compatibility:\u003c\/b\u003e Standard 4-40 thread size fits a wide range of hardware and components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for machine shops, automotive work, electronics enclosures, robotics, and general maintenance tasks where a durable, compact fastener is required. The 1\/2 inch length is suitable for panels and assemblies where space is limited but sufficient thread engagement is needed.\u003c\/p\u003e \u003ch3\u003eInstallation \u0026amp; care\u003c\/h3\u003e\n\u003cp\u003eTo ensure peak performance, use a compatible hex driver and apply a light lubricant on the threads during installation to reduce galling and achieve accurate torque. Do not exceed recommended torque to avoid stripping the thread or damaging components. Keep fasteners clean and dry when not in use to preserve the finish and integrity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50366299341079,"sku":"0408CSPKC","price":20.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/00002CSP_fc9d6a23-201d-4943-9e47-1dc0b1875b73.jpg?v=1747423110","url":"https:\/\/mutualscrew.com\/products\/socket-head-cap-screws-alloy-steel-thermal-black-oxide-4-40-x-1-2_0408cspkc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}