S-91390A092 M2 x 5 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Rockwell C45 hardness alloy steel construction, ensuring excellent wear resistance and durability in demanding applications
• Precise and secure fastening thanks to the Class 5g6g thread fit, providing reliable engagement and reducing the risk of loosening under vibration
• Easy installation in confined spaces with the compact, headless design and hex drive for straightforward tool access and a flush finish
• Optimized for rapid assembly with a coarse thread pitch (0.4mm) and right-hand direction, allowing for quicker installation compared to fine-pitch alternatives
• Enhanced grip and minimal surface damage from the cup tip, which concentrates pressure for a secure hold on shafts and components
• Guaranteed dimensional consistency and interchangeability, manufactured to meet DIN 916 and ISO 4029 standards for metric set screws
• Safe for use in regulated industries with full compliance to RoHS 3 and REACH environmental regulations, ensuring no hazardous substances are present

Professional Applications & Engineering Value

This M2 set screw is engineered to address critical challenges in precision assemblies, such as securing gears, pulleys, and collars onto shafts where space is limited and reliability is non-negotiable. The alloy steel material, hardened to Rockwell C45, provides exceptional shear and tensile strength, preventing failure under high-stress conditions. Its headless and hex drive design allows for tool engagement without protruding parts, making it ideal for compact machinery, electronics, and automotive components. The metric thread with a coarse pitch ensures quick installation and strong holding force, while the cup tip bites into the mating surface to resist rotational forces. Fully compliant with DIN 916/ISO 4029, this set screw delivers consistent performance in OEM and MRO applications, from conveyor systems to precision instruments.

Specification Summary & Compliance

This product features an M2 x 0.4mm thread with a Class 5g6g tolerance for precise fit, a length of 5mm, and a hex drive size of 0.9mm. It is manufactured in accordance with DIN 916 and ISO 4029 specifications for dimensional accuracy and performance. The screw is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from restricted hazardous substances.