S-92240A108 1/4"-28 x 1" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing long-term maintenance costs.
• Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance in high-stress applications.
• Precise and secure fastening ensured by the Class 2A thread fit and UNF fine thread, minimizing the risk of loosening under vibration.
• Efficient installation and removal with a standard external hex drive and hex head design, compatible with common tools for quick assembly.
• Full thread engagement along the entire 1" length provides maximum grip and load distribution in assembled components.
• Compliance with major industry standards including ASME B18.2.1, ensuring dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting strict regulatory requirements for hazardous substances.

Professional Applications & Engineering Value

This 1/4"-28 UNF hex head screw is engineered to address critical challenges in industrial assembly, where corrosion resistance and high tensile strength are paramount. The 18-8 stainless steel material provides excellent durability against moisture and chemicals, extending service life in applications like marine equipment, food processing machinery, and outdoor structures. The fine thread spacing and Class 2A thread fit deliver superior vibration resistance and precise alignment, reducing the risk of joint failure in dynamic environments. Its fully threaded design ensures consistent clamping force, making it a reliable choice for securing heavy-duty components in automotive, aerospace, and construction projects where safety and longevity are non-negotiable.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF thread with a Class 2A fit for precise dimensional tolerance. It is manufactured in compliance with the ASME B18.2.1 standard, ensuring consistent quality and performance. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.