S-91294A532 M20 x 90 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
- Superior mechanical strength from Class 10.9 alloy steel, supporting heavy-duty applications with 120,000 psi tensile strength.
- Reliable thread engagement with Class 6g fit and coarse M20x2.5mm threads, ensuring secure fastening and vibration resistance.
- Optimized flush mounting with a standard 90° countersink angle, providing a smooth surface finish and reduced snagging risks.
- Easy installation and removal using a standard 12mm hex drive, facilitating efficient assembly and maintenance.
- Full threading along the 90mm length for maximum grip and adjustability in deep or variable material thicknesses.
- Compliance with international standards including DIN 7991/ISO 10642, ensuring consistent quality and interchangeability.
Professional Applications & Engineering Value
This M20 flat head screw is engineered to address critical challenges in heavy machinery, structural steelwork, and automotive assemblies where vibration resistance and high clamp force are paramount. The black-oxide alloy steel construction combats rust and wear in humid or abrasive conditions, while the Class 10.9 strength grade and Rockwell C32 hardness prevent shear failure under dynamic loads. Its fully threaded design and coarse metric thread (M20x2.5mm) enable rapid installation and reliable holding power in metals and composites, reducing assembly time and maintenance frequency. Ideal for countersunk applications requiring a flush finish, this screw ensures seamless integration in frames, brackets, and enclosures without protrusions.
Specification Summary & Compliance
This fastener adheres to DIN 7991 / ISO 10642 specifications, with precise Class 6g thread fit and 90° countersink angle for dimensional accuracy. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.
