{"product_id":"keystone-threaded-products-um012ag1f001850-hex-nut","title":"Keystone Threaded Products UM012AG1F001850 Hex Nut","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KEYSTONE THREADED PRODUCTS UM012AG1F001850 is a left-hand threaded hex nut machined from steel for use in Acme-thread assemblies. It carries a 3\/4-6 Acme thread specification with a 2G fit class, meaning it delivers a standard commercial-grade clearance suitable for power-transmission and linear-motion applications. The nut measures 1.25 inches across flats and stands 47\/64 inches tall. Left-hand thread orientation prevents loosening in applications where rotation direction would otherwise back off a standard right-hand fastener. Machinists, millwrights, and maintenance technicians working on lead screws, vises, jacks, and similar mechanical assemblies specify this type of fastener.\u003c\/p\u003e\u003cp\u003eThis nut is suited for industrial and commercial mechanical assemblies that rely on Acme-profile lead screws. Typical installations include manual and powered linear actuators, machine tool components, valve stems, and lifting equipment where a left-hand thread is required to counteract operational torque or to pair with a left-hand lead screw. It is not intended for standard fastener or structural bolting applications. Installers should confirm thread direction and fit class against the mating screw before assembly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand Acme thread prevents self-loosening in counter-rotating assemblies\u003c\/li\u003e\n\u003cli\u003e3\/4-6 thread size with 2G fit class for standard commercial clearance\u003c\/li\u003e\n\u003cli\u003eSteel construction provides strength and durability in mechanical drive applications\u003c\/li\u003e\n\u003cli\u003e1.25 inches across flats accepts standard hex wrenching tools\u003c\/li\u003e\n\u003cli\u003e47\/64 inches height suits compact nut-pocket and flange designs\u003c\/li\u003e\n\u003cli\u003eUNSPSC Code 31161727 for procurement classification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement or service nut for mechanical assemblies using 3\/4-6 left-hand Acme threaded lead screws with a 2G fit class. Confirm thread direction, pitch, and fit class against the mating component before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or millwright familiar with Acme-thread assemblies. Disengage and lock out all power sources before removing or replacing any threaded fastener in a live mechanical drive system. Do not force the nut onto the mating screw; hand-start threads to confirm proper engagement before applying torque. Inspect the mating lead screw for wear or damage before installing a new nut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/4-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Acme\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Fit Class\u003c\/strong\u003e: 2G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNut Type\u003c\/strong\u003e: Hex Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 47\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161727\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: UM012AG1F001850\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEYSTONE THREADED PRODUCTS","offers":[{"title":"Default Title","offer_id":67912872165682,"sku":"UM012AG1F001850","price":17.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ec3167b3643209c110505cf7032b8556.jpg?v=1791240431","url":"https:\/\/voomisupply.com\/products\/keystone-threaded-products-um012ag1f001850-hex-nut","provider":"Voomi Supply","version":"1.0","type":"link"}