S-92949A633 3/8"-16 x 2 1/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding heavy-duty applications.
- Precise and secure fastening achieved through Class 3A thread fit and UNC coarse threading, reducing the risk of cross-threading and loosening.
- Efficient installation and removal facilitated by the hex drive design, allowing for high torque application with standard tools.
- Full thread engagement along the entire 2 1/4" length, providing consistent clamping force and vibration resistance.
- Compliance with industry standards including ASME B18.3, ensuring dimensional accuracy and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
Engineered for robust performance, these 3/8"-16 UNC fully threaded screws with a rounded head and hex drive are ideal for industrial machinery, structural assemblies, and marine equipment where vibration resistance and corrosion are critical concerns. The 18-8 Stainless Steel material combined with a passivated finish significantly extends service life by resisting oxidation and chemical exposure. The Class 3A thread fit and coarse UNC threading ensure quick assembly and high fatigue strength, reducing maintenance downtime. These heavy-duty fasteners provide reliable, long-lasting connections in applications ranging from manufacturing plants to outdoor infrastructure, delivering consistent performance under stress.
Specification Summary & Compliance
This screw features a 3/8"-16 UNC thread with Class 3A fit for precise tolerance, fully threaded along a 2 1/4" length. Manufactured in compliance with ASME B18.3 specifications, it ensures dimensional consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety standards for hazardous substances.
