S-90175A117 3/4"-10 x 3 1/4" 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, ideal for high-stress structural connections
- Superior wear resistance due to Rockwell C38 hardness, extending service life in demanding environments
- Reliable clamping force from the partially threaded design and 1 7/8" grip length, minimizing joint loosening
- Easy installation and removal with external hex drive and 1 1/4" head width, compatible with standard tools
- Precise thread engagement through UNC coarse threads and Class 2A fit, reducing cross-threading risks
- Compliance with rigorous standards including ASTM A490/F3125, ensuring consistent performance in critical applications
- Environmental responsibility with RoHS 3 and REACH compliance, meeting global regulatory requirements
Professional Applications & Engineering Value
This high-strength hex head screw is engineered to address critical challenges in construction and industrial applications, where structural integrity and durability are paramount. The ASTM Grade A490 steel composition, combined with a partially threaded design and UNC coarse threads, provides exceptional resistance to vibration and dynamic loads, preventing joint failure in heavy machinery, steel frameworks, and infrastructure projects. The external hex drive ensures efficient torque transmission during installation, reducing assembly time while maintaining 150,000 psi tensile strength. By utilizing Class 2A thread fit and a robust 1 7/8" grip length, this fastener delivers consistent clamping force, making it a reliable choice for engineers and contractors seeking long-term performance in demanding environments.
Specification Summary & Compliance
This 3/4"-10 hex head screw adheres to precise dimensional standards, including Class 2A thread fit and UNC coarse threading, ensuring compatibility and ease of use. It meets ASTM A490 specifications (as part of ASTM F3125) for high-strength structural bolts, with verified Rockwell C38 hardness and 150,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting sustainable and safe manufacturing practices.
