{"product_id":"simpson-atrm3-3-atrm-3-8-in-x-36-in-all-thread-rod-grade-55","title":"Simpson ATRM3-3 3\/8 in. x 36 in. All-Thread Rod, Grade 55 Medium-Strength","description":"\u003cdiv\u003e\n \u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie ATRM 3\/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. Built from uncoated black steel meeting ASTM A36 specifications with a minimum yield strength of 55 ksi and a minimum tensile strength of 75 ksi, this all-thread rod provides a continuous and reliable load path from roof to foundation - making it an essential component in shearwall overturning restraint and roof uplift restraint applications. Beyond tiedown systems, it is also suitable for use as an adhesive anchor rod and a variety of other structural fastening applications.\u003c\/p\u003e\n\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePrecut 36 in. length - ready to install without on-site cutting, saving labor time and reducing measurement error\u003c\/li\u003e\n \u003cli\u003eMeets Grade 55 specifications (Fy = 55 ksi, Fu = 75 ksi) - delivers verified tensile and yield strength for demanding seismic and wind-force applications\u003c\/li\u003e\n \u003cli\u003eUNC Class 2A thread specification - ensures compatibility with standard nuts and connectors used in continuous rod tiedown systems\u003c\/li\u003e\n \u003cli\u003eASTM A36 material standard - confirms the rod meets a widely recognized structural steel specification, supporting code-compliant installations\u003c\/li\u003e\n \u003cli\u003eUncoated black steel finish - suited for interior structural applications and adhesive anchor rod use where coating is not required\u003c\/li\u003e\n \u003cli\u003e3\/8 in. rod diameter - sized for use in continuous rod tiedown systems, shearwall overturning restraint, and uplift restraint systems for roofs\u003c\/li\u003e\n \u003cli\u003eFully threaded along the entire 36 in. length - allows positioning of nuts and connectors anywhere along the rod for flexible installation configurations\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 resistance, this all-thread rod is engineered to anchor structural systems from roof to foundation - not a generic fastener adapted for structural use.\u003c\/li\u003e\n \u003cli\u003eThe precut 36 in. length eliminates field cutting, making it a time-efficient choice for contractors installing continuous rod tiedown or uplift restraint systems.\u003c\/li\u003e\n \u003cli\u003eGrade 55 strength (Fy = 55 ksi, Fu = 75 ksi) combined with UNC Class 2A threading means this rod integrates directly with compatible Strong-Rod system hardware without modification.\u003c\/li\u003e\n \u003cli\u003eIts versatility extends beyond tiedown systems - the same rod can serve as an adhesive anchor rod or be used across a variety of other structural fastening applications, reducing the number of different rod SKUs needed on a job site.\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 ATRM3-3\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 3\/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\u003eTensile 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 for shearwall overturning restraint\u003c\/li\u003e\n \u003cli\u003eUplift restraint system for roofs\u003c\/li\u003e\n \u003cli\u003eAdhesive anchor rod\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 is this all-thread rod used for?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThis fully threaded rod is designed as a tension transfer element for structural systems built to resist seismic and wind forces. It is used in continuous rod tiedown systems for shearwall overturning restraint, in uplift restraint systems for roofs, and also as an adhesive anchor rod in a variety of other structural applications.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eWhat thread standard does this rod use?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThe ATRM3-3 features a UNC Class 2A thread specification, which ensures compatibility with standard nuts and connectors used in continuous rod tiedown and uplift restraint system assemblies.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eWhat are the strength ratings for this rod?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThis rod meets Grade 55 specifications per ASTM A36, with a minimum yield strength (Fy) of 55 ksi and a minimum ultimate tensile strength (Fu) of 75 ksi - providing the structural capacity required for seismic and wind-force load path applications.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eDoes this rod come precut or does it need to be cut to length on site?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThe ATRM3-3 comes precut at 36 in. (3 ft.) for convenience, eliminating the need for field cutting and allowing for faster installation in tiedown and uplift restraint system assemblies.\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"Default Title","offer_id":48085360935142,"sku":"ATRM3-3","price":4.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0398\/5188\/4705\/files\/ATRM4_png.jpg?v=1785362760","url":"https:\/\/factorydirectsupply.com\/products\/simpson-atrm3-3-atrm-3-8-in-x-36-in-all-thread-rod-grade-55","provider":"FactoryDirectSupply.com","version":"1.0","type":"link"}