S-99642A121 M6 x 12 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with precision-machined cup point design that bites into mating surfaces for secure, permanent fastening
• Exceptional durability through Rockwell C45 hardened alloy steel construction that resists wear and deformation under heavy loads
• Precise thread engagement with Class 5g6g fine thread tolerance ensuring reliable performance in high-vibration applications
• Optimized installation efficiency featuring 3mm hex drive design for easy access in confined spaces and consistent torque application
• Industry-standard compatibility manufactured to DIN 916/ISO 4029 specifications for guaranteed interchangeability and reliability
• Enhanced corrosion resistance through material properties and compliance with RoHS 3 and REACH environmental regulations
• Space-saving headless design that provides flush mounting while maintaining full thread engagement along the 12mm length

Professional Applications & Engineering Value

These M6 fine thread set screws deliver critical engineering solutions for industrial applications requiring permanent, vibration-resistant fastening. The alloy steel construction hardened to Rockwell C45 provides exceptional shear strength and fatigue resistance, making them ideal for securing gears, pulleys, and collars on rotating shafts in machinery and automotive assemblies. The cup point design creates concentrated pressure that digs into mating surfaces, preventing slippage even under extreme rotational forces. With Class 5g6g thread fit and 0.75mm fine pitch, these hex headless screws offer precise adjustment capabilities and maintain clamping force in high-stress environments where standard fasteners might fail. The combination of DIN 916/ISO 4029 certification and 3mm hex drive ensures both standardization compliance and installation efficiency across production lines.

Specification Summary & Compliance

This metric set screw features M6 x 0.75mm fine threads with Class 5g6g tolerance per ISO metric thread standards, ensuring precise fit and reliable performance. The 12mm length provides optimal engagement depth for most industrial applications. Manufactured to DIN 916 ISO 4029 specifications, these screws maintain consistent dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental regulations for industrial components.