S-92240A265 1 1/4"-7 x 2 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 from 18-8 Stainless Steel construction, ideal for harsh or outdoor environments.
- High-strength performance with 80,000 psi tensile strength and Rockwell B70 hardness for demanding applications.
- Reliable and secure fastening ensured by the Class 2A thread fit and fully threaded 2 1/2" length.
- Easy installation and removal with a standard external hex drive and 1 7/8" head width for common tools.
- Durable coarse (UNC) threading provides superior grip and is less prone to cross-threading during assembly.
- Compliance with major industrial standards including ASME B18.2.1, ensuring dimensional accuracy and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for regulated industries.
Professional Applications & Engineering Value
This heavy-duty hex head screw is engineered to solve critical fastening challenges in construction, machinery assembly, and structural applications. The 18-8 Stainless Steel material offers excellent resistance to rust and oxidation, making it suitable for marine, chemical, and food processing environments where corrosion is a concern. The coarse UNC thread and Class 2A fit provide a robust hold, reducing the risk of stripping and ensuring vibration resistance in dynamic loads. Its external hex drive and substantial head size allow for high torque application, facilitating quick and secure installations in heavy-duty frameworks, equipment bases, and infrastructure projects where tensile strength and long-term reliability are non-negotiable.
Specification Summary & Compliance
This screw features a 1 1/4"-7 UNC thread with Class 2A dimensional accuracy, a 2 1/2" length, and is fully threaded. It is manufactured in compliance with the ASME B18.2.1 standard for hex bolts and screws, ensuring precise dimensions and mechanical properties. The product also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming it is free of hazardous substances and safe for use in regulated industrial and international markets.
