S-92316A331 3/8"-16 x 3 1/2" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 Steel Flanged Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Maximum Load-Bearing Capacity – Grade 8 classification and 150,000 PSI tensile strength ensure reliable performance in high-stress industrial applications.
- Enhanced Corrosion Resistance – Black phosphate steel coating provides durable protection against rust and environmental exposure.
- Secure Fastening with Coarse Threads – UNC coarse thread spacing and Class 2A fit offer excellent grip and vibration resistance in coarse materials.
- Flanged Head Design – Integrated flange distributes load evenly, eliminating the need for separate washers and speeding up assembly.
- Partially Threaded Shank – Allows for precise clamping force and reduces the risk of thread damage during installation.
- External Hex Drive Compatibility – Standard hex head enables easy installation with common wrenches and sockets.
- Compliance with Industry Standards – Meets SAE J429, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
Engineered for heavy-duty applications, this Grade 8 hex head screw delivers exceptional reliability in construction, machinery, and automotive assemblies. The black phosphate steel finish enhances corrosion resistance, making it suitable for environments exposed to moisture and chemicals. With a partially threaded design and UNC coarse threads, it provides superior holding power in wood, metal, and composite materials, reducing the risk of stripping. The external hex drive ensures straightforward installation with standard tools, while the flanged head offers increased bearing surface for stable, long-lasting connections. Ideal for structural frames, equipment mounts, and high-vibration settings, this screw combines strength with ease of use.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit and UNC coarse thread standards, ensuring precise dimensional accuracy. It complies with IFI 111 (SAE J429) for mechanical properties, RoHS 3 (2015/863/EU) for restricted substances, and REACH (EC 1907/2006) for chemical safety, guaranteeing quality and regulatory conformity in industrial use.
