S-93190A300 1/4"-28 x 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 in harsh environments thanks to premium 316 stainless steel construction
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-lasting performance
- Precise and secure fastening ensured by the Class 2A thread fit and UNF fine thread profile, minimizing the risk of loosening
- High-torque installation capability with the external hex drive and 7/16" head width for easy and efficient assembly
- Maximum grip and load distribution from the fully threaded 1/2" length design, enhancing joint integrity
- Guaranteed quality and interchangeability through compliance with the rigorous ASME B18.2.1 standard
- Safe for regulated industries with full RoHS 3 and REACH compliance, ensuring environmental and safety standards are met
Professional Applications & Engineering Value
This 1/4"-28 UNF hex head screw is engineered to solve critical fastening challenges in demanding industrial settings. The 316 stainless steel material provides outstanding resistance to chemicals, saltwater, and other corrosive agents, making it ideal for marine, chemical processing, and food industry applications where durability is non-negotiable. The combination of a fine thread (UNF) and Class 2A fit offers superior vibration resistance and precise alignment in assemblies, preventing joint failure. The fully threaded design and external hex drive allow for high clamp load and easy installation with common tools, streamlining maintenance and reducing downtime in machinery, structural frameworks, and heavy-duty equipment.
Specification Summary & Compliance
This fastener features a 1/4"-28 UNF thread with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured to meet the ASME B18.2.1 standard, ensuring reliable performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility for global industrial use.
