S-92240A239 1/4"-20 x 5 1/2" 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
- Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and stress
- Rockwell B70 hardness provides superior durability and resistance to wear and deformation
- Full UNC coarse threading enables faster installation and better performance in softer materials
- External hex drive design allows for high torque application with standard tools
- Class 2A thread fit ensures smooth assembly while maintaining secure fastening
- Comprehensive compliance with ASME B18.2.1, RoHS 3, and REACH regulations for quality assurance
Professional Applications & Engineering Value
This heavy-duty 18-8 stainless steel hex head screw is engineered to solve critical fastening challenges in demanding industrial applications. The combination of 80,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in structural assemblies, machinery, and equipment where vibration resistance and load-bearing capacity are paramount. The fully threaded UNC coarse thread design provides maximum grip length and superior pull-out resistance, while the external hex drive accommodates high-torque installation without stripping. Ideal for construction, manufacturing, and marine applications, this 5 1/2" fastener delivers consistent performance in corrosive environments where ordinary fasteners would fail prematurely.
Specification Summary & Compliance
This 1/4"-20 x 5 1/2" hex head screw features precise Class 2A thread fit per UNC standards, ensuring proper clearance and assembly compatibility. Manufactured in compliance with ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for regulated industrial markets and international supply chains.
