S-93474A214 M6 x 25 mm ISO 898-1, DIN 6921 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc yellow-chromate plating, extending service life in harsh industrial environments
• High tensile strength of 150,000 psi ensures reliable performance in heavy-duty and high-stress applications
• Class 10.9 strength grade provides superior load-bearing capacity and fatigue resistance for critical assemblies
• Integrated flange design eliminates the need for separate washers, simplifying installation and improving joint stability
• Precision Class 6g thread fit guarantees smooth engagement and consistent clamping force in metric assemblies
• Partially threaded shank allows for precise unthreaded grip length, reducing stress concentration in fastened materials
• Rockwell C32 hardness maintains thread integrity and prevents stripping during repeated torquing operations

Professional Applications & Engineering Value

These M6 hex head screws deliver critical engineering solutions where vibration resistance, corrosion protection, and structural integrity are paramount. The zinc yellow-chromate plated steel construction provides superior barrier protection against oxidation and chemical exposure in manufacturing equipment, automotive subsystems, and structural steel connections. The Class 10.9 strength rating combined with coarse thread design ensures rapid installation and reliable performance in high-vibration environments. The flanged hex head distributes clamping force evenly, preventing surface damage while the external hex drive accommodates standard tools for efficient maintenance operations. These partially threaded fasteners are engineered for applications requiring precise unthreaded shank length to optimize shear strength in bolted joints.

Specification Summary & Compliance

Manufactured to ISO 898-1 and DIN 6921 specifications with Class 6g thread fit tolerance for precision metric threading. The M6 x 1 mm coarse thread configuration ensures compatibility with standard metric components. These screws feature 18 mm minimum thread length on a 25 mm overall length with 14.2 mm flange diameter. Compliance includes RoHS and REACH environmental directives for industrial use.