S-90300A220 1/2"-13 x 1 1/2" Hex Head Screws with Flat Washer
Hex Head Screws with Flat Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term durability
- High tensile strength of 100,000 psi ensures reliable performance under heavy loads and vibration
- Integrated flat washer distributes load evenly, preventing surface damage and maintaining joint integrity
- Class 2A thread fit provides consistent, easy assembly while maintaining secure fastening
- Fully threaded coarse UNC design allows for rapid installation and superior grip in various materials
- External hex drive with 3/4" head width offers high torque capability and compatibility with standard tools
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance
Professional Applications & Engineering Value
This heavy-duty 1/2"-13 UNC hex head screw is engineered to address critical industrial fastening challenges. The 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, making it suitable for outdoor, marine, and chemical processing applications. The integrated flat washer eliminates the need for separate components, reducing assembly time and preventing loosening under dynamic loads. With a coarse thread and Class 2A fit, it ensures quick, reliable installation in structural steel, machinery, and construction projects where high tensile strength and corrosion resistance are paramount. The external hex drive design allows for high-torque application, ensuring tight, secure connections in demanding environments.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 2A tolerance for consistent fit and ease of assembly. It is manufactured from 18-8 Stainless Steel with a Rockwell B95 hardness and fully threaded design. The integrated flat washer has an OD of 1.243" and thickness of 0.101". The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.
