S-91210A811 M5 x 12 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with 90° cone point design that bites into mating surfaces for maximum resistance to loosening under vibration
• Enhanced corrosion resistance through zinc-plated alloy steel construction, extending service life in demanding industrial environments
• Precise torque application enabled by 2.5mm hex drive design, preventing tool slippage and ensuring consistent fastening pressure
• Reliable thread engagement with Class 5g6g thread fit tolerance, maintaining secure connections in high-stress applications
• Optimized for coarse thread applications where rapid assembly and disassembly are required without compromising holding strength
• Consistent performance backed by Rockwell C45 hardness rating, ensuring dimensional stability and resistance to deformation
• Global compatibility through DIN 914/ISO 4027 certification, guaranteeing interchangeability with international metric fastener systems

Professional Applications & Engineering Value

This M5 set screw with 90° cone point addresses critical engineering challenges in industrial fastening applications where vibration resistance and precise positioning are paramount. The zinc-plated alloy steel construction provides durable protection against environmental factors while maintaining the Rockwell C45 hardness necessary for repeated adjustments without thread deformation. The headless design with hex drive allows for flush mounting in confined spaces, making it ideal for securing collars, pulleys, and gears on shafts where protruding fastener heads would interfere with adjacent components. The coarse thread spacing with Class 5g6g thread fit ensures rapid installation while maintaining the clamping force required for high-performance mechanical assemblies.

Specification Summary & Compliance

This metric set screw features precise M5 x 0.8mm thread dimensions with Class 5g6g tolerance per ISO metric standards, ensuring consistent thread engagement. Manufacturing complies with DIN 914/ISO 4027 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations, confirming environmental responsibility and workplace safety standards for industrial procurement.