S-92323A533 5/16"-18 x 1/2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws
Medium-Strength Grade 5 Steel Serrated-Flange 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
- Exceptional tensile strength (110,000 PSI) ensures reliable performance in demanding applications, reducing failure risks
- Zinc-plated steel construction provides superior corrosion resistance for extended service life in harsh environments
- Flanged hex head design eliminates the need for separate washers while distributing load evenly
- Grade 5 classification guarantees consistent mechanical properties and load-bearing capacity
- Coarse UNC threading with Class 2A fit enables quick installation and superior vibration resistance
- Full threading along the 1/2" length maximizes grip strength and adjustment flexibility
- External hex drive allows for high-torque installation using standard tools
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 5 hex head screw addresses critical fastening challenges where vibration resistance and structural integrity are paramount. The zinc-plated steel construction provides essential corrosion protection for machinery, equipment assemblies, and structural frameworks exposed to environmental elements. The combination of coarse UNC threading and Class 2A fit ensures secure engagement in both metallic and composite materials, while the flanged design simplifies assembly by integrating washer functionality. These fully threaded fasteners deliver uniform clamping force across the entire engagement length, making them ideal for automotive, construction, and manufacturing applications requiring high-strength, corrosion-resistant solutions.
Specification Summary & Compliance
This 5/16"-18 UNC hex head screw features precise Class 2A thread fit tolerances and complies with IFI 111/SAE J429 standards for mechanical properties and dimensional requirements. The fastener maintains Rockwell C22 hardness and meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring suitability for regulated industries and international markets.
