S-91390A601 M2 x 2 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with cup point design that bites into surfaces for secure, vibration-resistant fastening
• Exceptional durability from alloy steel construction with Rockwell C45 hardness to withstand high-stress applications
• Precise installation control through 0.9mm hex drive that prevents stripping and ensures consistent torque application
• Reliable thread engagement with Class 5g6g coarse threads that provide easier assembly and reduced cross-threading risk
• Industry-standard compatibility meeting DIN 916/ISO 4029 specifications for seamless integration into existing metric systems
• Environmental compliance assurance with RoHS 3 and REACH compliance for safe use in regulated industries
• Space-saving headless design ideal for applications where flush mounting and compact assemblies are critical

Professional Applications & Engineering Value

This M2 set screw delivers exceptional engineering value in precision assemblies where space constraints and vibration resistance are paramount. The alloy steel construction with Rockwell C45 hardness provides the necessary strength to maintain clamping force under dynamic loads, while the cup point design creates permanent seating marks that prevent loosening in vibrating machinery. The metric coarse thread (0.4mm pitch) ensures quick installation and reliable engagement in soft materials or blind holes. Particularly valuable in industrial set screws applications requiring hex drive accessibility, this fastener solves critical challenges in electronics manufacturing, precision instruments, and compact mechanical systems where headless screw configurations are essential for streamlined designs.

Specification Summary & Compliance

This precision set screw features M2 x 0.4mm metric coarse threads manufactured to Class 5g6g tolerance standards, ensuring consistent fit and performance. The fastener strictly adheres to DIN 916/ISO 4029 manufacturing specifications for dimensional accuracy and mechanical properties. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and material transparency, making it suitable for global industrial applications requiring certified components.