S-90175A115 3/4"-10 x 2 3/4" ASTM A490, ASTM F3125 High-Strength Steel Heavy Hex Head Screws for Structural Applications
High-Strength Steel Heavy Hex Head Screws for Structural Applications
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 150,000 psi tensile strength for critical structural connections
- Superior hardness and wear resistance from Rockwell C38 rating, extending service life in demanding environments
- Reliable coarse UNC threading ensures quick assembly and reduced cross-threading risks in industrial applications
- Optimized partial threading design provides maximum grip length (1 3/8") for secure joint clamping
- Heavy-duty external hex drive with 1 1/4" head width delivers superior torque transmission and installation efficiency
- Precision Class 2A thread fit maintains consistent engagement while accommodating minor variations in field conditions
- Full regulatory compliance with RoHS 3 and REACH standards for global industrial deployment
Professional Applications & Engineering Value
Engineered for heavy structural connections in construction and industrial machinery, these ASTM Grade A490 hex head screws solve critical fastening challenges where vibration resistance and permanent joint integrity are paramount. The high-strength steel construction combined with UNC coarse threading prevents loosening under dynamic loads while the external hex drive accommodates high-torque installation. The partially threaded design concentrates strength where needed most, making these industrial hex bolts ideal for steel-to-steel connections, structural steel framing, and heavy equipment assembly where failure is not an option.
Specification Summary & Compliance
Manufactured to ASTM A490/F3125 specifications with Class 2A thread fit ensuring dimensional accuracy and interchangeability. Features 3/4"-10 UNC coarse threads with precise 1 3/8" thread length and 2 3/4" overall length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmentally responsible manufacturing. The 1 1/4" hex head provides optimal wrench engagement for secure installation in high-strength applications.
