{"product_id":"precision-brand-54251-square-key-stock-0-25x0-25x24-in-steel","title":"Precision Brand 54251 Square Key Stock 0.25x0.25x24 in Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION BRAND 54251 is a square key stock bar used to transmit torque between a shaft and a mating hub, gear, pulley, or sprocket. Cut from low-carbon 1018 steel with a plain finish, this stock measures 0.25 inches wide by 0.25 inches high by 24 inches long and is sold as a single piece. The Rockwell B80-90 hardness rating provides adequate shear resistance for general power-transmission applications without being brittle. Machinists, millwrights, and maintenance technicians cut this bar to length on the job to fit standard quarter-inch keyways.\u003c\/p\u003e\n\u003cp\u003eSquare key stock in the 0.25-inch profile is a common fit for light-to-medium duty shaft assemblies found in HVAC blower assemblies, pump drives, conveyor systems, and general industrial equipment. The 24-inch bar length allows a single piece to yield multiple keys for production or maintenance work. A plain, uncoated finish makes the bar easy to machine, file, or grind to final fit on standard shop equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSquare 0.25 x 0.25-inch profile fits standard quarter-inch keyways\u003c\/li\u003e\n  \u003cli\u003eLow-carbon 1018 steel — machinable, weldable, and readily available for field fabrication\u003c\/li\u003e\n  \u003cli\u003eRockwell B80-90 hardness — suitable for general power-transmission torque loads\u003c\/li\u003e\n  \u003cli\u003e24-inch bar length yields multiple cut-to-length keys from a single piece\u003c\/li\u003e\n  \u003cli\u003ePlain finish requires no prep before cutting or fitting\u003c\/li\u003e\n  \u003cli\u003eSold as a single bar with no minimum order beyond one piece\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard cut-to-length key stock for any shaft and hub assembly with a 0.25 x 0.25-inch square keyway, consistent with ANSI\/ASME power-transmission keyway standards for that shaft diameter range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a machinist, millwright, or qualified maintenance technician. De-energize and lock out the drive equipment before removing or fitting any key. Cut the key stock to length using a metal-cutting saw or mill; deburr all edges before fitting to avoid stress concentration in the keyway. Do not use a key that is a loose fit — a key with excessive side clearance will fret and fail under cyclic torque loading.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey Stock Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Low-Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Specification\u003c\/strong\u003e: 1018\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Plain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: Rockwell B80-90\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.43 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31163208\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: PRECISION BRAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 54251\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION BRAND","offers":[{"title":"Default Title","offer_id":51541874213170,"sku":"54251","price":15.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/23b6b354ce5dfec38168e62b4cb5243f.jpg?v=1785887333","url":"https:\/\/voomisupply.com\/products\/precision-brand-54251-square-key-stock-0-25x0-25x24-in-steel","provider":"Voomi Supply","version":"1.0","type":"link"}