S-91310A334 M6 x 25 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Class 10.9 strength grade provides superior load-bearing capacity, making it ideal for heavy-duty machinery and structural assemblies.
• Rockwell C32 hardness offers excellent resistance to wear and deformation, extending the service life of the fastener in abrasive environments.
• Partially threaded design allows for precise clamping force control and secure fastening in materials where full threading isn't required.
• Coarse metric thread spacing (M6x1mm) enables quick installation and removal, saving valuable assembly time in production lines.
• External hex drive with 10mm head provides superior torque transmission and easy access with standard tools, minimizing stripping risks.
• Black steel construction offers basic corrosion resistance while maintaining cost-effectiveness for industrial applications.

Professional Applications & Engineering Value

These M6 hex head screws deliver critical engineering solutions where high tensile strength and precision threading are paramount. The Class 10.9 steel construction addresses common industrial challenges of vibration-induced loosening and mechanical stress, making them ideal for heavy machinery assembly, structural steel connections, and automotive components. The partially threaded configuration ensures optimal grip length while preventing thread damage in blind holes. With ISO 4014 compliance and metric coarse threading, these fasteners provide reliable performance in maintenance operations and production lines where standardized components are essential for inventory management and replacement efficiency.

Specification Summary & Compliance

Manufactured to ISO 4014 specifications (equivalent to DIN 931) with Class 6g thread fit tolerance ensuring precise engagement. The 25mm length with 18mm minimum thread length provides consistent fastening depth. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. Right-hand thread direction with M6x1mm coarse pitch threading meets international metric standards for interchangeability and replacement.