{"product_id":"simpson-atrm9-3-atrm-1-1-8-in-x-36-in-all-thread-rod-grade-55","title":"Simpson ATRM9-3 1-1\/8 in. x 36 in. All-Thread Rod, Grade 55 Medium-Strength","description":"\u003cdiv\u003e\n \u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie ATRM 1-1\/8 in. x 36 in. All-Thread Rod, Grade 55\u003c\/strong\u003e is a fully threaded steel rod engineered as a tension transfer element for structural systems designed to resist seismic and wind forces. By providing a continuous and reliable load path from roof to foundation, this all-thread rod plays a critical role in keeping structures secure under lateral loading conditions. Whether used in a continuous rod tiedown system for shearwall overturning restraint, an uplift restraint system for roof applications, or as an adhesive anchor rod, this threaded rod delivers the strength and versatility that structural applications demand.\u003c\/p\u003e\n\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePrecut 36 in. length\u003c\/strong\u003e - ready to install without on-site cutting, saving time and reducing fabrication effort on the job.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGrade 55 specification (ASTM A36; Fy = 55 ksi and Fu = 75 ksi)\u003c\/strong\u003e - delivers high tensile and yield strength, ensuring the rod can handle the demanding loads imposed by seismic and wind force systems.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUNC Class 2A thread specification\u003c\/strong\u003e - a standardized thread profile that ensures consistent fit with compatible nuts, couplers, and bearing plates used in tiedown and uplift restraint systems.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1-1\/8 in. rod diameter\u003c\/strong\u003e - a robust cross-section suited to heavy structural loads in shearwall overturning restraint and roof uplift restraint applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUncoated black steel finish\u003c\/strong\u003e - provides a clean, ready-to-use surface compatible with a wide range of structural connector hardware in interior and protected installations.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMade in the United States\u003c\/strong\u003e - domestically produced to support quality control standards expected in engineered structural applications.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhy This Product\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eDesigned specifically as a tension transfer element for seismic and wind force-resisting systems, this rod is engineered to maintain a continuous load path from roof to foundation - addressing one of the most critical requirements in modern structural design.\u003c\/li\u003e\n \u003cli\u003eThe precut 36 in. length eliminates the need for field cutting and threading, reducing labor time and the risk of field errors when installing a continuous rod tiedown system or uplift restraint system.\u003c\/li\u003e\n \u003cli\u003eWith ASTM A36 material meeting Grade 55 strength values (Fy = 55 ksi and Fu = 75 ksi), this rod provides known, code-consistent mechanical properties that structural engineers can rely on when designing shearwall overturning restraint systems.\u003c\/li\u003e\n \u003cli\u003eMulti-application versatility - appropriate for continuous rod tiedown systems, roof uplift restraint systems, and adhesive anchor rod installations - means a single product can serve multiple roles across a project.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Simpson Strong-Tie\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e ATRM9-3\u003c\/li\u003e\n\n \u003cli\u003e\n\u003cstrong\u003eProduct Class:\u003c\/strong\u003e Threaded Rod\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRod Diameter:\u003c\/strong\u003e 1-1\/8 in.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRod Length:\u003c\/strong\u003e 36 in.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Uncoated Steel\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Uncoated Steel\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eThread Specification:\u003c\/strong\u003e UNC Class 2A\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial Standard:\u003c\/strong\u003e ASTM A36\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eYield Strength (Fy):\u003c\/strong\u003e 55 ksi\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUltimate Tensile Strength (Fu):\u003c\/strong\u003e 75 ksi\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e Grade 55\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProp 65:\u003c\/strong\u003e No\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eApproved Applications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eContinuous rod tiedown system (ATS) for shearwall overturning restraint\u003c\/li\u003e\n \u003cli\u003eUplift restraint system (URS) for roof applications\u003c\/li\u003e\n \u003cli\u003eAdhesive anchor rod installations\u003c\/li\u003e\n \u003cli\u003eStructural systems designed to resist seismic forces\u003c\/li\u003e\n \u003cli\u003eStructural systems designed to resist wind forces\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n \u003cdl\u003e\n \u003cdt\u003e\u003cstrong\u003eWhat structural systems is the ATRM9-3 designed to work with?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThe ATRM9-3 is designed for use in structural systems that resist seismic and wind forces. It functions as a tension transfer element, providing a continuous load path from roof to foundation. Specific applications include continuous rod tiedown systems for shearwall overturning restraint, uplift restraint systems for roofs, and adhesive anchor rod installations.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eWhat are the material and strength specifications for this all-thread rod?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThe ATRM9-3 is manufactured from uncoated steel meeting ASTM A36 requirements at Grade 55 values, with a minimum yield strength (Fy) of 55 ksi and a minimum ultimate tensile strength (Fu) of 75 ksi. The thread profile conforms to UNC Class 2A specifications.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eDoes this rod come precut, or does it need to be cut to length in the field?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThis rod comes precut to a length of 36 in. (3 feet) with a diameter of 1-1\/8 in., so no field cutting or threading is required. The precut format is designed for convenience during installation in tiedown and uplift restraint systems.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eIs this rod coated or treated for corrosion protection?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eNo - the ATRM9-3 is uncoated black steel with no applied corrosion-resistant finish. It is intended for use in applications where the installation environment does not require additional corrosion protection, such as interior or protected structural assemblies.\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"Default Title","offer_id":48085361230054,"sku":"ATRM9-3","price":36.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/ATRM_1-1-8.png?v=1785360273","url":"https:\/\/factorydirectsupply.com\/products\/simpson-atrm9-3-atrm-1-1-8-in-x-36-in-all-thread-rod-grade-55","provider":"FactoryDirectSupply.com","version":"1.0","type":"link"}