{"product_id":"keystone-threaded-products-um016ag1f002540-hex-nut","title":"Keystone Threaded Products UM016AG1F002540 Hex Nut","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KEYSTONE THREADED PRODUCTS UM016AG1F002540 is a heavy hex nut machined from 1215 and 12L14 free-machining steel. It carries a left-hand Acme thread at 1-4 thread size with a 2G fit class, making it suited for lead screws, jack screws, and linear-motion assemblies that require reverse-thread engagement to resist loosening under directional load. The nut measures 1-5\/8 inches across flats and 63\/64 inch in height. It weighs 0.425 pounds. Maintenance mechanics, millwrights, and industrial technicians install this part in power-transmission and positioning equipment.\u003c\/p\u003e\n\u003cp\u003eThis hex nut is intended for use in mechanical assemblies where an Acme left-hand thread is specified  -  commonly found in vises, presses, lifting fixtures, and machine tool feed mechanisms. The 2G thread fit class provides a standard commercial tolerance appropriate for most general-purpose Acme applications. The 1215 and 12L14 steel grades offer good machinability and are commonly used in precision-turned fastener components. This nut does not meet military fastener specifications and should not be substituted in mil-spec assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand Acme thread engages reverse-thread lead screws and anti-back-drive assemblies\u003c\/li\u003e\n  \u003cli\u003e1215 and 12L14 free-machining steel for consistent dimensional accuracy\u003c\/li\u003e\n  \u003cli\u003e2G fit class delivers standard commercial Acme thread tolerance\u003c\/li\u003e\n  \u003cli\u003e1-5\/8 inch width across flats accepts standard hex wrench and socket tooling\u003c\/li\u003e\n  \u003cli\u003e63\/64 inch height provides adequate thread engagement depth for the 1-4 thread size\u003c\/li\u003e\n  \u003cli\u003eDoes not meet military specifications  -  suitable for commercial and industrial use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 1-4 left-hand Acme threaded rods, lead screws, and spindles requiring a 2G fit class in commercial industrial and mechanical power-transmission applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by millwrights or maintenance mechanics using standard hex sockets or open-end wrenches. Confirm left-hand thread engagement before applying torque  -  the nut tightens by turning counterclockwise relative to the mating screw. De-energize and lock out all power sources before replacing any nut in a moving assembly. Do not substitute this nut in safety-critical or mil-spec fastener applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Acme\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Fit Class\u003c\/strong\u003e: 2G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 1-5\/8 inches (1.6250 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 63\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 1215 and 12L14\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.425 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMilitary Specification\u003c\/strong\u003e: Does Not Meet Military Specifications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161727\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: KEYSTONE THREADED PRODUCTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: UM016AG1F002540\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEYSTONE THREADED PRODUCTS","offers":[{"title":"Default Title","offer_id":67915084366130,"sku":"UM016AG1F002540","price":27.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d6f6ece345c37f115a9de1da8956b4ba_663e47bb-3653-4b67-9b65-f0619d9aaa6f.jpg?v=1791252183","url":"https:\/\/voomisupply.com\/products\/keystone-threaded-products-um016ag1f002540-hex-nut","provider":"Voomi Supply","version":"1.0","type":"link"}