S-91180A643 M10 x 55 mm ISO 8765, DIN 960 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 (110,000 psi) and Class 8.8 rating for reliable performance in demanding applications
• Precise M10x1.25 fine thread ensures secure fastening with reduced risk of loosening under vibration
• External hex drive design provides excellent torque transmission for easy installation and removal
• Partially threaded shank offers optimal grip length control and prevents over-tightening
• Rockwell C21 hardness maintains structural integrity under repeated stress and load conditions
• Full regulatory compliance with ISO 8765 DIN 960, RoHS 3, and REACH for global project acceptance

Professional Applications & Engineering Value

Engineered for industrial reliability, these M10 hex head screws combine Class 8.8 steel construction with zinc plating to solve critical fastening challenges in machinery assembly, structural frameworks, and automotive components. The fine thread pitch (1.25mm) delivers superior vibration resistance compared to coarse thread alternatives, while the partially threaded design concentrates clamping force precisely where needed. With external hex drive compatibility standard across industrial tools, these metric fasteners ensure consistent installation torque and reduce assembly time in production environments requiring repeated disassembly for maintenance.

Specification Summary & Compliance

Manufactured to ISO 8765 DIN 960 specifications with Class 6h thread fit tolerance ensuring dimensional accuracy. The 55mm length includes 26mm minimum thread length for secure engagement. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for industrial fastener applications.