S-95373A171 3/8"-16 x 2 1/2" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with hot-dipped galvanized steel finish, ideal for outdoor or humid industrial environments.
• High tensile strength of 60,000 psi ensures reliable performance in heavy-duty applications without failure.
• Rockwell B69 hardness provides excellent durability and resistance to wear and deformation.
• Coarse UNC threads with Class 2A fit offer quick assembly and secure fastening in various materials.
• Partially threaded design allows for precise clamping force control and vibration resistance.
• External hex drive and hex head enable easy installation and removal with standard tools.
• Compliance with ASME B18.2.1 and ASTM A307 guarantees consistent quality and interchangeability.

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw is engineered to address critical challenges in industrial fastening, such as corrosion and mechanical stress. The hot-dipped galvanized steel construction provides a robust barrier against rust, extending service life in harsh conditions like construction, machinery, and infrastructure projects. With a coarse thread and partial threading, it ensures rapid installation and reduced loosening under vibration, making it ideal for structural assemblies and equipment requiring high tensile strength. Its compliance with industry standards like ASME B18.2.1 ensures reliability, while the external hex drive simplifies maintenance, saving time and labor costs in B2B operations.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, a length of 2 1/2", and partial threading. It conforms to ASME B18.2.1 and ASTM A307 specifications, ensuring consistent performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.