S-92210A428 7/16"-14 x 4" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
- Precise Class 3A thread fit for secure, vibration-resistant assemblies and reduced risk of loosening under load
- High tensile strength of 70,000 psi and Rockwell B55 hardness for dependable performance in heavy-duty applications
- 82° countersink angle and standard flat head profile enable flush mounting, improving aesthetics and safety
- Fully threaded coarse (UNC) design provides maximum grip length and faster installation in various materials
- 1/4" hex drive allows for high-torque installation with common tools, reducing assembly time
- Compliance with ASME B18.3, RoHS 3, and REACH ensures quality, safety, and environmental responsibility
Professional Applications & Engineering Value
This 7/16"-14 UNC 4" flat head screw is engineered to address critical industrial fastening challenges where corrosion resistance, high strength, and precise fit are paramount. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor equipment. The Class 3A thread fit and coarse UNC threading ensure reliable engagement in metals and plastics, reducing cross-threading risks and maintaining clamp force under vibration. With its fully threaded design and 82° countersink, it offers consistent holding power and a smooth, flush finish for machinery, structural frames, and assembly lines where safety and durability are non-negotiable.
Specification Summary & Compliance
This screw adheres to ASME B18.3 standards, with precise Class 3A thread fit and UNC coarse thread spacing for consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Dimensions include a 7/16"-14 thread size, 4" length, and 0.844" head diameter, all manufactured to exact tolerances for industrial use.
