S-91280A225 M5 x 14 mm ISO 4017, DIN 933, ISO 898 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 ensures reliable performance under heavy loads and vibration
• Class 8.8 strength grade provides consistent mechanical properties for critical applications
• Coarse 0.8mm thread pitch enables faster assembly and reduced cross-threading risks
• Fully threaded design offers maximum grip length and uniform load distribution
• External hex head with 8mm width allows for high-torque installation using standard tools
• Precision Class 6h thread fit guarantees secure fastening and dimensional accuracy

Professional Applications & Engineering Value

These M5 hex head screws deliver exceptional engineering value in demanding applications where vibration resistance and structural integrity are paramount. The Class 8.8 steel construction combined with Rockwell C21 hardness provides optimal strength-to-weight ratio for machinery, equipment frames, and automotive assemblies. The metric coarse threading with 0.8mm pitch ensures rapid installation in production environments while maintaining secure fastening. Zinc plating offers essential protection against oxidation and chemical exposure, making these fully threaded fasteners ideal for outdoor equipment, manufacturing systems, and industrial maintenance where corrosion resistance and long-term reliability are critical requirements.

Specification Summary & Compliance

Manufactured to ISO 4017 and DIN 933 standards with Class 6h thread fit tolerance for precision dimensional control. These metric hex head screws comply with ISO 898 mechanical properties requirements and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 14mm length with M5 x 0.8mm coarse thread configuration ensures compatibility with standard metric components and industrial specifications.