S-93700A228 M12 x 35 mm 12-Point Screws

Key Features & Benefits at a Glance

• Superior corrosion protection with black-oxide coating on alloy steel for extended service life in harsh industrial environments
• High-torque installation capability through external 12-point drive design that prevents tool slippage and damage
• Exceptional mechanical strength with 180,000 psi tensile strength and Rockwell C38 hardness for heavy-duty applications
• Precise thread engagement with Class 4h thread fit ensuring reliable fastening and vibration resistance
• Enhanced load distribution through integrated flange design that eliminates need for separate washers
• Optimized thread design with partial threading providing maximum grip strength in critical engagement areas
• Industry-standard compatibility with metric coarse thread (M12 x 1.75mm) for seamless integration into existing assemblies

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M12 12-point screws deliver exceptional performance where reliability is critical. The black-oxide alloy steel construction provides superior corrosion resistance, significantly extending service life in challenging environments. The external 12-point drive system enables high-torque installation without cam-out, while the flanged design distributes clamping force evenly, reducing surface pressure and preventing material deformation. With Class 4h thread fit precision and partial threading, these fasteners maintain consistent preload and resist loosening under vibration, making them ideal for heavy machinery, structural assemblies, and automotive applications where high-strength fasteners are essential for safety and performance.

Specification Summary & Compliance

This metric screw features M12 x 1.75mm coarse thread spacing with Class 4h thread fit precision, ensuring tight tolerances and reliable performance. The fastener meets industry standards for dimensional accuracy with 35mm length, 30mm minimum thread length, and 21.6mm flange diameter. Manufactured from alloy steel with Rockwell C38 hardness and 180,000 psi tensile strength, these screws comply with international metric threading specifications and are suitable for applications requiring high-strength fasteners with superior corrosion resistance properties.