{"product_id":"simpson-atrm3-15-atrm-3-8-in-x-18-in-all-thread-rod-grade-55","title":"Simpson ATRM3-1.5 3\/8 in. x 18 in. All-Thread Rod, Grade 55 Medium-Strength","description":"\u003cdiv\u003e\n \u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie ATRM 3\/8 in. x 18 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 to Grade 55 specifications with ASTM A36 steel, this all-thread rod delivers a continuous and reliable load path from roof to foundation - making it a trusted component in continuous rod tiedown systems for shearwall overturning restraint, uplift restraint systems for roof applications, and adhesive anchor rod installations.\u003c\/p\u003e\n\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePrecut to 18 in. length\u003c\/strong\u003e - ready to install out of the box, saving layout and cutting time on the job site\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMeets Grade 55 specifications (ASTM A36; Fy = 55 ksi and Fu = 75 ksi)\u003c\/strong\u003e - delivers medium-strength tensile performance suited for structural tiedown and uplift restraint applications\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUNC Class 2A thread specification\u003c\/strong\u003e - ensures broad compatibility with standard nuts, couplers, and bearing plates used in continuous rod tiedown assemblies\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFully threaded along the entire 18 in. length\u003c\/strong\u003e - allows flexible positioning of hardware anywhere along the rod, simplifying installation in varied framing conditions\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUncoated black steel construction\u003c\/strong\u003e - provides a straightforward, cost-effective option for interior and protected structural applications where additional corrosion coating is not required\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e3\/8 in. rod diameter\u003c\/strong\u003e - a compact size that fits tight framing bays while still providing the structural capacity required for shearwall and roof uplift systems\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 threaded rod is purpose-built for structural tiedown systems - not a generic hardware fastener repurposed for structural use\u003c\/li\u003e\n \u003cli\u003eThe precut 18 in. length eliminates field cutting and threading, reducing labor time and the risk of measurement errors in continuous rod tiedown and uplift restraint assemblies\u003c\/li\u003e\n \u003cli\u003eIts versatility extends beyond shearwall systems - this all-thread rod can also be used as an adhesive anchor rod, giving contractors a single product that serves multiple structural applications on the same project\u003c\/li\u003e\n \u003cli\u003eMade in the United States to ASTM A36 standards with Grade 55 certification, this rod meets the material specification requirements commonly referenced in engineered structural designs for wind and seismic load paths\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 ATRM3-1.5\u003c\/li\u003e\n\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 18 in.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e Grade 55\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:\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\u003eSteel 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\u003eProduct Class:\u003c\/strong\u003e Threaded Rod\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 systems for shearwall overturning restraint\u003c\/li\u003e\n \u003cli\u003eUplift restraint systems 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 this all-thread rod designed for?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThis rod is designed for use as a tension transfer element in structural systems that resist seismic and wind forces. It can be used in a continuous rod tiedown system for shearwall overturning restraint, an uplift restraint system for roof applications, or as an adhesive anchor rod in various other structural configurations.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eWhat thread specification does this rod use?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThe ATRM3-1.5 uses a UNC Class 2A thread specification. This is a standard unified national coarse thread class that is compatible with a wide range of structural hardware components including nuts, couplers, and bearing plates commonly used in tiedown assemblies.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eWhat are the steel strength properties of this rod?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThis rod meets Grade 55 specifications and conforms to ASTM A36 with a yield strength (Fy) of 55 ksi and an ultimate tensile strength (Fu) of 75 ksi. These values define it as a medium-strength threaded rod suitable for the structural load path demands of shearwall and roof uplift restraint systems.\u003c\/dd\u003e\n \u003cdt\u003e\u003cstrong\u003eDoes this rod come precut or does it need to be cut to length?\u003c\/strong\u003e\u003c\/dt\u003e\n \u003cdd\u003eThis rod comes precut to 18 in. (1.5 ft) for convenience. No field cutting or threading is required, allowing for faster installation in continuous rod tiedown and uplift restraint applications.\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/div\u003e","brand":"SIMPSON","offers":[{"title":"Default Title","offer_id":48085360214246,"sku":"ATRM3-1.5","price":1.7,"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-atrm3-15-atrm-3-8-in-x-18-in-all-thread-rod-grade-55","provider":"FactoryDirectSupply.com","version":"1.0","type":"link"}