S-90409A205 3/4"-10 x 4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 Steel Flanged Hex Head Screws
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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 demanding industrial applications
- Superior wear resistance due to Rockwell C32 hardness, ensuring long service life under high-stress conditions
- Enhanced stability and vibration resistance from the integrated flange design, eliminating the need for separate washers
- Reliable coarse UNC threading provides faster assembly and better performance in softer materials or dirty environments
- Precision Class 2A thread fit ensures consistent engagement and reduces cross-threading risks during installation
- Heavy-duty Grade 8 certification guarantees compliance with rigorous SAE J429/IFI 111 standards for critical applications
- Environmentally compliant construction meeting RoHS 3 and REACH regulations for safe global industrial use
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 8 hex head screw delivers exceptional performance in construction equipment, machinery assembly, and structural frameworks where high tensile strength and vibration resistance are critical. The partially threaded design concentrates strength where needed most, while the coarse UNC thread ensures rapid installation even in challenging conditions. The integrated flange provides superior clamping force distribution, preventing joint loosening under dynamic loads. Manufactured from high-strength steel with external hex drive compatibility, it offers reliable torque transmission for maintenance and assembly operations across various industrial sectors.
Specification Summary & Compliance
This 3/4"-10 UNC coarse thread fastener features Class 2A thread fit tolerances and partial threading with minimum 1 3/4" thread length. Manufactured to IFI 111/SAE J429 Grade 8 specifications with 150,000 PSI tensile strength and Rockwell C32 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
