S-91263A885 M5 x 45 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Class 10.9 rating and 120,000 PSI tensile strength for demanding industrial applications
• Superior corrosion resistance provided by zinc-plated alloy steel construction, extending service life in harsh environments
• Optimized installation efficiency through 3mm hex drive design and fully threaded coarse pitch (0.8mm) for faster assembly
• Precise flush mounting capability with standard flat head profile and 90° countersink angle for seamless surface integration
• Guaranteed dimensional accuracy with Class 6g thread fit ensuring consistent performance and interchangeability
• Enhanced durability from Rockwell C32 hardness, maintaining fastener integrity under high stress conditions
• Regulatory compliance assurance meeting DIN 7991 standards and RoHS 3/REACH environmental directives

Professional Applications & Engineering Value

These M5 flat head screws deliver critical engineering solutions for heavy-duty industrial applications where vibration resistance and long-term reliability are paramount. The zinc-plated alloy steel construction provides essential corrosion resistance in manufacturing environments, while the Class 10.9 strength rating ensures secure fastening in high-stress assemblies. The fully threaded coarse pitch design (0.8mm) enables rapid installation and superior holding power in metal-to-metal applications. The standard flat head profile with 90° countersink allows for flush mounting in precision equipment, machinery, and structural components where protrusion must be eliminated. These metric screws are engineered to maintain clamping force under dynamic loads, making them ideal for automotive, industrial machinery, and construction applications requiring dependable fastening solutions.

Specification Summary & Compliance

This M5 x 45mm flat head screw features Class 6g thread fit tolerance for precision mating with standard metric nuts and tapped holes. Manufacturing complies with DIN 7991 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for restricted hazardous substances and REACH (EC 1907/2006) compliance for chemical safety. The fully threaded design with coarse 0.8mm pitch and right-hand thread direction follows standard metric threading conventions for universal compatibility in industrial applications.