S-90129A117 5/16"-18 x 1" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Flanged Hex Head Screws
Medium-Strength Grade 5 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 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance thanks to the black protective coating, extending service life in harsh environments
- Enhanced grip and stability from the integrated flange, distributing load evenly and eliminating the need for separate washers
- Quick and easy installation with external hex drive and coarse UNC threads, reducing assembly time and effort
- Precise thread fit with Class 2A tolerance ensuring consistent, secure fastening and vibration resistance
- Full threading along the 1" length provides maximum engagement and adjustability in various material thicknesses
- Industry-standard compliance meeting SAE J429 Grade 5 specifications for guaranteed mechanical properties
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 5 hex head screw combines black corrosion-resistant coated steel construction with UNC coarse threading to solve critical fastening challenges. The fully threaded design ensures maximum holding power across joint variations, while the integrated flange provides superior clamp load distribution - eliminating washer requirements in machinery assembly, structural frameworks, and equipment manufacturing. With external hex drive compatibility, it enables high-torque installation in confined spaces where vibration loosening is a concern, making it ideal for automotive subsystems, construction equipment, and industrial machinery requiring 120,000 psi tensile strength reliability.
Specification Summary & Compliance
This fastener maintains Class 2A thread fit per UNC standards with precise 5/16"-18 coarse thread specifications. Manufacturing complies with IFI 111/SAE J429 Grade 5 requirements for mechanical properties including Rockwell C22 hardness. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for global industrial supply chains.
