S-91294A561 M20 x 30 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, ideal for harsh industrial environments
• High tensile strength of 120,000 psi ensures reliable performance under heavy loads
• Class 10.9 strength grade provides superior durability for critical applications
• Precise 90° countersink angle delivers flush mounting and professional finish
• Fully threaded design offers maximum grip and uniform load distribution
• Rockwell C32 hardness maintains structural integrity under repeated stress
• 12mm hex drive enables secure installation with standard tools

Professional Applications & Engineering Value

This M20 flat head screw with Class 10.9 strength rating and black-oxide alloy steel construction addresses critical engineering challenges in heavy machinery, structural assemblies, and industrial equipment. The fully threaded metric design with 2.5mm coarse pitch ensures rapid installation and superior vibration resistance, while the 90° countersink angle provides seamless flush mounting in precision applications. The black-oxide surface treatment significantly enhances corrosion protection in demanding environments, making these hex drive screws ideal for automotive, construction, and manufacturing sectors where reliability and compliance with international standards are paramount.

Specification Summary & Compliance

Manufactured to DIN 7991 and ISO 10642 specifications with Class 6g thread fit tolerance for precise engagement. The M20 x 2.5mm thread with right-hand direction and coarse spacing ensures compatibility with standard metric components. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting global industrial safety and sustainability requirements.