S-92323A253 3/8"-24 x 1 1/4" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws
Medium-Strength Grade 5 Steel Serrated-Flange 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 tensile strength of 110,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Zinc-plated steel construction provides enhanced corrosion resistance, extending service life in harsh environments and minimizing maintenance needs.
- UNF fine threads with Class 2A fit offer superior vibration resistance and precise engagement, preventing loosening under dynamic loads.
- Flanged hex head design eliminates the need for separate washers, speeding up assembly and distributing load evenly to protect surfaces.
- External hex drive allows for high-torque installation with standard tools, ensuring secure fastening and reducing installation time.
- Full threading along the 1-1/4" length provides consistent clamping force and flexibility in various material thicknesses.
- Grade 5 classification and SAE J429 compliance guarantee consistent quality and mechanical properties for demanding engineering applications.
Professional Applications & Engineering Value
This Grade 5 hex head screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in heavy machinery, automotive assemblies, and structural frameworks. The zinc-plated steel material combats rust and wear, while the UNF fine thread design maintains tightness under cyclic stresses. With a Rockwell C22 hardness and flanged head, it delivers durable, washer-free performance that streamlines installation in tight spaces. Ideal for industrial fastening where reliability and compliance with SAE J429 standards are critical, this screw ensures long-term integrity in demanding environments.
Specification Summary & Compliance
This fastener features a 3/8"-24 UNF fine thread with Class 2A thread fit for precise tolerance, and is manufactured to meet IFI 111 specifications under SAE J429. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are adhered to.
