S-93190A338 5/16"-24 x 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Precise thread engagement with Class 2A fit UNF fine threads, ensuring reliable, vibration-resistant connections
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Easy installation and removal with external hex drive and standard 1/2" head width for common tool compatibility
• Full threading along the 1/2" length provides maximum grip and uniform stress distribution in assemblies
• Compliance with industry standards including ASME B18.2.1, ensuring dimensional accuracy and interchangeability
• Environmental and safety adherence with RoHS 3 and REACH compliance for responsible manufacturing

Professional Applications & Engineering Value

Engineered for industrial and marine environments, these 316 stainless steel hex head screws address critical challenges like corrosion, high stress, and chemical degradation. The UNF fine threading and Class 2A fit deliver superior resistance to loosening under vibration, making them ideal for machinery, pumps, and structural assemblies. With a fully threaded design and external hex drive, they enable quick, secure fastening in tight spaces, reducing assembly time and maintenance costs. Their compliance with ASME B18.2.1 ensures reliability in precision engineering applications, from OEM equipment to repair operations.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit per UNF standards, with precise dimensions including 5/16"-24 thread size and 1/2" length. It meets ASME B18.2.1 specifications for hex head fasteners and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.