S-92186A256 1 1/4"-7 x 5 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 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 316 Stainless Steel construction, ideal for harsh environments including marine and chemical processing.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration.
- Rockwell B70 hardness provides excellent durability and resistance to wear over time.
- Class 2A thread fit offers consistent, easy assembly and secure fastening with standard nuts.
- External hex drive and hex head design allows for high-torque installation with common tools, speeding up assembly.
- Partially threaded shank concentrates clamping force where needed, reducing the risk of loosening in dynamic applications.
- Coarse UNC thread enables quick engagement and is less prone to clogging in dirty or debris-filled conditions.
Professional Applications & Engineering Value
This 1 1/4"-7 UNC hex head screw is engineered to address critical challenges in heavy-duty and corrosive environments. The 316 Stainless Steel material delivers exceptional resistance to chlorides and acids, making it a top choice for marine equipment, chemical plants, and offshore structures. Its partially threaded design ensures that the unthreaded portion bears against connected materials, providing superior shear strength and preventing joint failure under stress. With a coarse thread and external hex drive, installation is efficient even in low-visibility or high-vibration settings, reducing downtime. This screw is ideal for structural frameworks, machinery assembly, and infrastructure projects where long-term reliability and compliance with industrial standards are paramount.
Specification Summary & Compliance
This screw features a 1 1/4"-7 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy and ease of assembly. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring interchangeability and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible use in global industrial supply chains.
