S-92240A443 1/2"-20 x 3" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration
• Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks
• External hex drive design allows for high-torque installation with standard tools
• Fine thread spacing delivers enhanced clamping force and superior resistance to loosening
• Full threading along the 3" length offers maximum adjustability and grip in deep applications
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality and environmental safety

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 1/2"-20 UNF hex head screws provide exceptional reliability in machinery, structural assemblies, and heavy equipment. The 18-8 Stainless Steel material combats rust and chemical exposure, extending service life in outdoor or corrosive environments. With an external hex drive and fine thread spacing, they enable secure fastening in high-vibration applications, preventing joint failure. Their 80,000 psi tensile strength and Rockwell B70 hardness ensure they withstand extreme mechanical stresses, making them a trusted choice for OEMs and maintenance teams requiring durable, corrosion-resistant screws that meet rigorous industry standards.

Specification Summary & Compliance

This hex head screw features a 1/2"-20 UNF thread with Class 2A fit for precise dimensional accuracy, fully threaded along a 3" length. It conforms to ASME B18.2.1 manufacturing specifications and is verified as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations without compromising performance.