S-91263A943 M12 x 55 mm DIN 7991 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 tensile strength with Class 10.9 rating (120,000 psi) ensures reliable performance in high-stress applications
- Superior corrosion resistance through zinc-plated alloy steel construction for extended service life in harsh environments
- Optimal thread engagement with coarse M12 x 1.75mm threading provides faster installation and secure fastening
- Precise Class 6g thread fit guarantees consistent performance and compatibility with standard metric nuts
- Enhanced drive stability with 8mm hex drive design prevents stripping and allows for higher torque application
- Comprehensive compliance with DIN 7991 standards ensures engineering reliability and interchangeability
- Environmental responsibility through RoHS 3 and REACH compliance for sustainable industrial applications
Professional Applications & Engineering Value
This high-strength M12 flat head hex screw delivers exceptional engineering value for demanding industrial applications where reliability is paramount. The zinc-plated alloy steel construction provides superior corrosion resistance, making it ideal for machinery, structural frameworks, and equipment exposed to challenging environments. The fully threaded design with coarse pitch ensures maximum thread engagement and vibration resistance, while the 90° countersink angle allows for flush mounting in precision assemblies. With Class 10.9 strength rating and Rockwell C32 hardness, this fastener maintains integrity under heavy loads and repeated stress cycles. The hex drive configuration enables efficient installation in confined spaces, reducing assembly time while providing secure, long-lasting fastening solutions for automotive, construction, and manufacturing sectors.
Specification Summary & Compliance
This metric fastener features precise Class 6g thread fit according to ISO standards, ensuring compatibility with standard metric components. The manufacturing strictly adheres to DIN 7991 specifications for dimensional accuracy and performance reliability. Comprehensive compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the product's suitability for global industrial applications while meeting stringent safety and sustainability requirements.
