{"product_id":"drill-rod-tool-steels-81175986-flat-stock-4142-alloy-steel","title":"Drill Rod Tool Steels 81175986 Flat Stock 4142 Alloy Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DRILL ROD TOOL STEELS 81175986 is a pre-hardened alloy steel flat stock bar made to AISI\/SAE Type 4142 specification. It measures 36 inches long, 1\/2 inch wide, and 5\/16 inch thick, with a weight of 1.59 pounds. Type 4142 is a chromium-molybdenum alloy steel known for its high strength, toughness, and fatigue resistance in the pre-hardened condition. This flat stock is suited for machining, fabrication, and tooling applications where a consistent cross-section and tight dimensional tolerances are required. Machinists, tool and die makers, and industrial fabricators work with this material in job shops and maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThis flat stock is used in the production of jigs, fixtures, machine components, tooling plates, and wear parts. The pre-hardened condition eliminates the need for heat treatment after machining in many applications, making it a practical choice for moderate-duty tooling and structural components. It is appropriate for both light production runs and custom one-off fabrication tasks in industrial and maintenance-repair-operations settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAISI\/SAE Type 4142 chromium-molybdenum alloy steel for high strength and toughness\u003c\/li\u003e\n  \u003cli\u003ePre-hardened condition  -  no post-machining heat treatment required for many applications\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of +0.250 inches allows precise cut-to-length flexibility\u003c\/li\u003e\n  \u003cli\u003eWidth tolerance of +0.005 inches and thickness tolerance of +0.001 inches for consistent cross-section\u003c\/li\u003e\n  \u003cli\u003eSquare tolerance of 0.003 inches ensures predictable geometric accuracy\u003c\/li\u003e\n  \u003cli\u003eWeighs 1.59 pounds  -  manageable for bench and machine work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose pre-hardened flat bar for tooling, fixturing, and fabrication applications requiring AISI\/SAE 4142 alloy steel flat stock.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCutting and machining of hardened alloy steel requires appropriate tooling  -  use carbide-tipped cutting tools and observe recommended feeds and speeds for pre-hardened material. Personal protective equipment including eye protection and gloves is required during cutting and grinding operations. Consult applicable workplace safety standards before processing hardened steel stock. Secure the workpiece properly in a vise or fixture before any machining or cutting operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Specification\u003c\/strong\u003e: AISI\/SAE Type 4142 Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition\u003c\/strong\u003e: Pre-Hardened\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 36 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Thickness\u003c\/strong\u003e: 0.3125 inches (5\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: +0.005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness Tolerance\u003c\/strong\u003e: +0.001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Tolerance\u003c\/strong\u003e: 0.003 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.59 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DRILL ROD TOOL STEELS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 81175986\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DRILL ROD \u0026 TOOL STEELS","offers":[{"title":"Default Title","offer_id":51972190961970,"sku":"81175986","price":99.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0bd010a1cae711f9686084786dbdb869_a9a202a6-ca2e-429c-8c24-ea70bc5c9044.jpg?v=1789964038","url":"https:\/\/voomisupply.com\/products\/drill-rod-tool-steels-81175986-flat-stock-4142-alloy-steel","provider":"Voomi Supply","version":"1.0","type":"link"}