S-91280A823 M22 x 50 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments
• High tensile strength of 110,000 PSI (Class 8.8) ensures reliable performance under heavy loads and vibration
• Full threading design provides maximum grip and uniform stress distribution along the entire fastener length
• Precise Class 6h thread fit guarantees smooth assembly and consistent clamping force in metric applications
• External hex drive with 32mm head allows for high-torque installation using standard tools
• Rockwell C21 hardness maintains structural integrity and prevents thread deformation during repeated use
• Compliance with ISO 4017/DIN 933 standards ensures dimensional accuracy and international interoperability

Professional Applications & Engineering Value

This M22 hex head screw delivers critical engineering advantages for heavy machinery, structural steel connections, and industrial equipment assembly. The Class 8.8 steel construction combined with coarse metric threading (M22x2.5) provides exceptional resistance to vibrational loosening while accommodating thermal expansion in metal-to-metal applications. The zinc plated finish creates a sacrificial barrier against oxidation in humid or outdoor environments, significantly reducing maintenance intervals. With 50mm length and fully threaded design, engineers achieve maximum thread engagement in thick materials while the external hex drive enables rapid installation with common industrial tools. These characteristics make it ideal for construction, automotive, and manufacturing sectors where high-strength fastening solutions must withstand dynamic loads and environmental challenges.

Specification Summary & Compliance

Manufactured to ISO 4017/DIN 933 specifications with Class 6h thread tolerance ensuring precise metric threading compatibility. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety. Mechanical properties include Rockwell C21 hardness and 110,000 PSI tensile strength certified to Class 8.8 strength grade. Thread configuration features right-hand direction with coarse 2.5mm pitch for optimal performance in industrial applications.