S-90409A150 1/2"-13 x 1 3/4" 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 strength and durability with Grade 8 classification and 150,000 psi tensile strength, ideal for high-stress industrial applications.
- Superior corrosion resistance and material integrity from high-strength steel construction and Rockwell C32 hardness.
- Enhanced load distribution and vibration resistance thanks to the integrated flange design, reducing the need for separate washers.
- Reliable and quick installation with an external hex drive and coarse UNC threading, ensuring secure fastening in demanding environments.
- Precise thread fit and interchangeability with Class 2A thread tolerance, providing consistent performance across assemblies.
- Optimized for partial threading applications allowing for unthreaded shank sections where shear strength is critical.
- Compliance with major industry standards including IFI 111/SAE J429, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive sectors where fastener failure is not an option. The high-strength steel and Rockwell C32 hardness provide exceptional resistance to wear and fatigue, while the 1/2"-13 UNC coarse thread and partial threading enhance grip and shear resistance in structural joints. The flanged design distributes clamping force evenly, minimizing surface damage and loosening under vibration. Ideal for industrial applications requiring reliable, high-tensile fastening, this screw ensures long-term performance in demanding environments, from assembly lines to outdoor equipment.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, a length of 1 3/4", and a flange diameter of 1 5/64". It is manufactured in compliance with IFI 111/SAE J429 standards, ensuring consistent quality and performance. The product is also RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
