S-92240A549 1/4"-20 x 1 7/8" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Exceptional tensile strength rated at 80,000 psi for reliable performance under heavy loads
- Precise Class 2A thread fit ensures smooth installation and secure fastening in coarse UNC threading
- Fully threaded design provides maximum grip and holding power across the entire screw length
- External hex drive compatibility allows for easy installation with standard tools and high torque application
- Rockwell B70 hardness maintains structural integrity and resists wear during repeated use
- Comprehensive regulatory compliance meets ASME B18.2.1, RoHS 3, and REACH standards for global acceptance
Professional Applications & Engineering Value
This 1/4"-20 UNC hex head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition prevents rust and degradation in demanding environments including marine applications, food processing equipment, and outdoor structures. The coarse UNC threading with Class 2A fit provides excellent engagement in various materials while resisting vibration-induced loosening. With fully threaded construction and external hex drive, installation efficiency is maximized while maintaining consistent clamping force across the entire 1 7/8" length. These features make it particularly valuable for assembly lines, machinery maintenance, and construction projects requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with Class 2A thread fit tolerance for consistent performance. Complies with ASME B18.2.1 manufacturing specifications for hex head screws. Meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. Features right-hand UNC coarse threading with standard 1/4"-20 configuration and external hex drive compatibility.
