S-93190A382 1/2"-20 x 1 1/4" 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
• Reliable high-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Precise thread engagement through Class 2A fit and UNF fine threading, ensuring secure fastening and vibration resistance
• Easy installation and removal with external hex drive and standard 3/4" head width for common tool compatibility
• Full threading along the 1-1/4" length provides maximum grip and adjustability in various material thicknesses
• Compliance with industry standards including ASME B18.2.1, ensuring dimensional accuracy and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe, sustainable use

Professional Applications & Engineering Value

This 316 stainless steel hex head screw delivers exceptional value in corrosive or high-moisture settings like marine equipment, chemical processing plants, and food-grade machinery. The UNF fine thread design and Class 2A fit minimize loosening under vibration, critical for assembly lines or heavy machinery. With a 1/2"-20 thread size and fully threaded 1-1/4" length, it offers versatile clamping force across joints. The external hex drive allows high-torque installation, reducing assembly time while the 70,000 psi tensile strength ensures long-term structural integrity in industrial hex bolt applications.

Specification Summary & Compliance

This hex head screw adheres to ASME B18.2.1 specifications with a Class 2A thread fit for consistent dimensional accuracy. It features a 1/2"-20 UNF fine thread, right-hand direction, and is fully threaded. The screw complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.