S-91304A173 M12 x 35 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with blue-dyed zinc plating that protects against harsh industrial environments
• High tensile strength of 120,000 psi ensures reliable performance in heavy-duty applications without failure
• Class 10.9 strength grade provides superior load-bearing capacity for critical structural fastening
• Precise Class 6g thread fit guarantees smooth installation and secure mating with components
• Fully threaded design offers maximum grip length and uniform stress distribution
• 8mm hex drive enables high-torque installation with standard tools for efficient assembly
• 90° countersink angle ensures flush mounting in prepared surfaces for clean, professional finishes

Professional Applications & Engineering Value

These M12 flat head screws with Class 10.9 strength rating and blue zinc-plated alloy steel construction address critical engineering challenges in heavy machinery, structural frameworks, and outdoor equipment. The coarse 1.75mm pitch thread provides superior resistance to vibration loosening, while the fully threaded design ensures maximum engagement in thick materials. The blue-dyed zinc plating offers both corrosion protection and visual part identification, making these metric screws ideal for applications requiring both durability and traceability. With Rockwell C32 hardness and compliance with DIN 7991/ISO 10642 standards, they deliver consistent performance in automotive, construction, and industrial assembly where reliability is paramount.

Specification Summary & Compliance

Manufactured to exact Class 6g thread tolerance with M12 x 1.75mm coarse thread and right-hand threading. These flat head screws conform to DIN 7991/ISO 10642 specifications for dimensional accuracy and mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.