S-91294A198 M4 x 25 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by black-oxide coating on alloy steel, extending service life in harsh industrial environments
• Precision engineering with Class 6g thread fit and metric coarse threading ensuring consistent, secure fastening every time
• Optimized installation efficiency through hex drive design and fully threaded shank for quick assembly and maximum thread engagement
• Industry-standard compliance meeting DIN 7991/ISO 10642 specifications for guaranteed interchangeability and quality
• Enhanced safety and reliability with Rockwell C32 hardness providing excellent resistance to wear and deformation
• Environmental responsibility through RoHS 3 and REACH compliance, ensuring safe use across regulated industries

Professional Applications & Engineering Value

This M4 flat head screw delivers critical engineering solutions for industrial applications where high-strength fastening and corrosion resistance are paramount. The black-oxide alloy steel construction combined with Class 10.9 strength rating ensures reliable performance in heavy machinery, automotive assemblies, and structural frameworks where vibration and load stresses are constant challenges. The fully threaded metric coarse design with hex drive enables rapid installation while maintaining superior clamping force. The flat head profile provides flush mounting in countersunk applications, making it ideal for equipment where surface smoothness is essential. These industrial fasteners are engineered to withstand extreme conditions while maintaining dimensional stability and thread integrity throughout their service life.

Specification Summary & Compliance

This precision fastener features Class 6g thread fit according to metric standards with M4 x 0.7mm coarse threading and 25mm length. Manufacturing complies with DIN 7991/ISO 10642 specifications ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions and chemical safety.